RANKING

Rank 11 out of 41 Summarized in this category Rankings based on: • Pros-to-cons ratio • Number of reviews • Category average

Medik8

C-Tetra Advanced Vitamin C Serum

Name: C-Tetra Advanced Vitamin C Serum
Brand: Medik8

around $75

All prices are estimates and may vary from actual prices.

145 Pros

81%
22 reviews (4h 32m)

33 Cons

Experience the Medik8 C-Tetra Advanced Vitamin C Serum, a lipid-soluble vitamin C serum designed to enhance radiance and combat free radicals for all skin types. This luxurious, lightweight serum absorbs quickly, leaving skin feeling hydrated and plump without a greasy residue. The gentle, oil-based formula features 14% THD ascorbate, a stabilize...

Summary of pros and cons from human reviewers, put together by AI

81%

29 vs 7

Ingredients

100%

10 vs 0

Hydration

96%

27 vs 1

Texture & Absorption

76%

13 vs 4

Skin Irritation/Sensitivity

50%

3 vs 3

Effectiveness

Reviewer verdict

Across 22 YouTube reviews, the Medik8 C-Tetra Advanced Vitamin C Serum earns a Summa score of 4.3/5, ranking #11 among Serums & Treatments. Reviewers most often praise its ingredients, texture & absorption, visible results, while the most common criticisms concern value for money, ingredients.

C-Tetra Advanced Vitamin C Serum is widely praised by reviewers for its stabilized, potent vitamin C derivative formulation and supportive antioxidant ingredients, with multiple mentions (29) highlighting ingredients like tetrahexyldecyl ascorbate, vitamin E/F and skin‑friendly bases. Many reviewers (27 mentions) also applaud the serum’s lightweight, fast-absorbing, non-greasy texture that sinks in quickly and feels silky. Users report visible skin benefits (19 mentions) such as brightening, reduced pigmentation and a more radiant, plump appearance, and several reviewers note it is gentle with low irritation (13 mentions), suitable even for vitamin C beginners. Packaging, scent and hydrating properties are additional frequently noted positives across reviews.

Criticisms focus most on price and availability (7 mentions) with several reviewers calling it pricey or expensive and noting potential limited availability in some countries. Ingredient and formulation caveats (7 mentions) were also raised, including sensitivity to light/oxygen, added fragrances and some comedogenic or silicone components that may concern certain users. A handful of reviewers mention packaging drawbacks (5 mentions)—notably opaque bottles that obscure remaining product and lack of airless pumps—and a smaller number reported scent issues or that the smell is unpleasant (5 mentions) or that they experienced some sensitivity or limited effectiveness compared with stronger vitamin C products.

Analysis based on 22 YouTube reviews (4h 32m of video) with 145 pros and 33 cons extracted.

Pros (145)

Ingredients (29)

medicate have put their heroes in this kit ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 0:15
an antioxidant so it helps to fight free radicals ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 2:48
have done everything they can to keep that sea as stable as possible ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 2:21
in a squalene base with jehovah, so it's very emollient and softening to the skin ▶ MINIMALIST SKINCARE | 3-Step Effective Routine for Great Ski @ 10:40
really strong vitamin c it's 30 vitamin c ▶ AM SKINCARE ROUTINE #madhippie, #medik8 #cerave @ 4:32
jam-packed with antioxidants ▶ My Favorite Medik8 Products You NEED To Try! @ 1:37
lipid vitamin C enhanced radiant serum ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 6:57
made in uk ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 1:10
multi-ceramide night cream ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 4:06
stabilized gentler form of vitamin c ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 2:08
also has vitamin E vitamin F red ginseng ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 7:00
vitamin C radiant syrup ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 0:25
complement your vitamin A incredibly well ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 4:01
beginners vitamin c ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 7:29
medicated see tetra plus intense vitamin C serum now this is good because it's a vitamin C derivative so it's not as powerful as there l-ascorbic acid ▶ HOW TO FADE DARK SPOTS & HYPERPIGMENTATION / The best skinca @ 3:23
vitamin e ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:28
11 times faster acting and 20 times more potent than standard retinol ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 0:04
ingredients are amazing ▶ My full skincare routine, age 30-60, sharing all my favourit @ 8:29
tetrahexal ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:27
makes the vitamin c more stable so it makes it more effective ▶ Medik8 - FANTASTIC skincare. Some of my beauty favourites! @ 6:53
made of a specific component that helps to encourage the production of hyaluronic acid within the skin again contributing to that anti-aging effect ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 11:23
no parabens no alcohol it's cruelty free ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 11:35
stabilized form of retinaldahhide ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 2:40
retinol is amazing for anti-aging ▶ My full skincare routine, age 30-60, sharing all my favourit @ 9:38
contains tetrahexal decal scorpio ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:16
velvety vitamin C featuring an combination of brightening and nourishing ingredients ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 3:48
the best vitamin C derivative on skincare planet earth ▶ VITAMIN C Hall Of Fame 2025 - Best & Worst Vitamin C Serums @ 5:15
the most potent vitamin C derivative that you're going to find ▶ VITAMIN C Hall Of Fame 2025 - Best & Worst Vitamin C Serums @ 5:41
the formulation is divine ▶ VITAMIN C Hall Of Fame 2025 - Best & Worst Vitamin C Serums @ 5:38

Texture & Absorption (27)

no oiliness or stickiness ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 6:51
active and they're easy they're lightweight ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 3:06
really like oily which i like ▶ AM SKINCARE ROUTINE #madhippie, #medik8 #cerave @ 6:01
lightweight formula ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 2:16
absorbs in my skin ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 3:26
nice juicy lightweight serum ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 1:51
dries quick ▶ Secrets for Glowing Skin | Deni Kiro Style @ 1:43
oil-based serum but it sinks in really nicely ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 7:29
dry oil ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 3:16
sinks in rapidly ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 2:18
really absorbs quickly ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 7:01
never felt oily ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 3:20
very smooth formula ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 5:49
really light ▶ Secrets for Glowing Skin | Deni Kiro Style @ 1:43
silky smooth, no stickiness ▶ My Favorite Medik8 Products You NEED To Try! @ 1:24
formula of course is really really nice and um soft really like nice and spreadable ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 5:32
quite runny ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 3:08
fatty and Rich ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 8:13
feels sort of really nice and buttery and smooth ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 9:03
vitamin c serum for my face, it goes into the skin really fast ▶ Trying Medik8 for a month to see if I improve my skin @ 12:10
doesn't leave some greasy residue ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 2:35
some vitamin C's can feel a bit oily and sit on the skin this is this has gone in beautifully ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 6:40
absorbs into my skin really, really quickly ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 2:30
beautiful texture a really lovely hydrating luxe texture ▶ Medik8 - FANTASTIC skincare. Some of my beauty favourites! @ 6:20
the textures are just like no other it's phenomenal phenomenal phenomenal skin care ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 12:18
it's already I feel like it's already sunken in ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 6:36
really really lightweight ▶ My full skincare routine, age 30-60, sharing all my favourit @ 10:32

Visible Results (19)

helped me a lot to reduce pigmentation under the eyes ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 6:35
adds a nice plump skin surface ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 1:21
leave skin looking bright and refreshed ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 2:18
brightening ▶ MINIMALIST SKINCARE | 3-Step Effective Routine for Great Ski @ 10:37
seen changes in my skin ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 4:44
skin has got clear up, don't have any marks on my skin now ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 4:52
visibly reduces dark spots by 20% ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 1:34
it does exactly that ▶ TIRED MUM EASY SKINCARE | MAKE UP REMOVAL | EVENING & MORNIN @ 3:30
it will still help tackle things like hyperpigmentation ▶ HOW TO FADE DARK SPOTS & HYPERPIGMENTATION / The best skinca @ 3:35
vitamin C enhanced Radiance ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 3:44
it will help prevent them but it will also help fades them if you have already kind of got uneven skin ▶ HOW TO FADE DARK SPOTS & HYPERPIGMENTATION / The best skinca @ 3:39
feel the wonders that it's done for my skin ▶ My full skincare routine, age 30-60, sharing all my favourit @ 11:35
another one um up here which is which is also gone ▶ Medik8 - FANTASTIC skincare. Some of my beauty favourites! @ 8:00
leaves your skin like a lot brighter and a lot smoother ▶ My full skincare routine, age 30-60, sharing all my favourit @ 9:22
visibly start to like get rid of and diminish really any like fine lines or wrinkles ▶ My full skincare routine, age 30-60, sharing all my favourit @ 11:46
bright refresh radiant ▶ TIRED MUM EASY SKINCARE | MAKE UP REMOVAL | EVENING & MORNIN @ 3:28
actually helped with sun damage ▶ Medik8 - FANTASTIC skincare. Some of my beauty favourites! @ 7:55
some quite quite a hefty sunspot there which is gone ▶ Medik8 - FANTASTIC skincare. Some of my beauty favourites! @ 7:57
results driven ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 14:23

Skin Irritation/Sensitivity (13)

extremely effective but it's low irritation ▶ My Favorite Medik8 Products You NEED To Try! @ 1:03
14% THD, really effective and you're not going to get irritation ▶ My Favorite Medik8 Products You NEED To Try! @ 1:32
best if you are introducing vitamin C into your routine for the very first time ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 7:13
fantastic for anybody who hasn't been able to tolerate traditional loric acid vitamin C's ▶ My Favorite Medik8 Products You NEED To Try! @ 0:57
suitable for all skin types ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 0:08
not irritating ▶ MINIMALIST SKINCARE | 3-Step Effective Routine for Great Ski @ 10:48
calming ▶ MINIMALIST SKINCARE | 3-Step Effective Routine for Great Ski @ 10:37
gentle on the skin ▶ My Favorite Medik8 Products You NEED To Try! @ 1:30
not had any adverse reactions ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 7:43
don't have any irritation ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 3:03
super high strength, and I don't get any irritation at all ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 4:03
for someone who did not use a vitamin c before or may have a bit of a sensitive skin this is good ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 7:41
super gentle, won't stress the skin out ▶ VITAMIN C Hall Of Fame 2025 - Best & Worst Vitamin C Serums @ 5:51

Hydration (10)

super hydrating ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 1:18
leaves a very nice Natural Glow ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 7:31
skin is moisturized ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 3:37
it really keeps the skin moisturized and fresh throughout the day ▶ Secrets for Glowing Skin | Deni Kiro Style @ 1:47
increase that vibrance and that glow up on your skin ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 2:32
adds that luminosity ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 2:43
my skin generally does look really sort of nice and plump ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 7:48
intense moisturizing product to use at night ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 10:30
skin is supposed to be glowing after it ▶ Trying Medik8 for a month to see if I improve my skin @ 1:28
gives you that beautiful glow, that lit from within radiance ▶ VITAMIN C Hall Of Fame 2025 - Best & Worst Vitamin C Serums @ 5:20

Scent (10)

doesn't have any perfume ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 6:27
smells incredible ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 3:54
smells delicious ▶ My Favorite Medik8 Products You NEED To Try! @ 1:15
feels like the orange shrine, peel of the orange when crushed ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 4:15
has a fragrance ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 4:10
nice and refreshing fragrance ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 7:04
smells like lemon ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 9:11
the scent it's so fresh I'm obsessed with anything lemon ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 9:00
smells amazing ▶ HOW TO BUILD AN EFFECTIVE SKINCARE ROUTINE!! || BUSY MOM SKI @ 3:21
smells citrusy and nice ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 5:02

Packaging (9)

gorgeous and glassy ▶ My Favorite Medik8 Products You NEED To Try! @ 1:07
30 ml ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 1:04
perfectly measured so you never use too much or too little ▶ My Favorite Medik8 Products You NEED To Try! @ 0:48
full size in this kit ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 0:30
comes in uv protected glass bottle ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 1:04
light safe bottle ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 2:03
comes in a dark glass bottle, best way to house vitamin C ▶ My Favorite Medik8 Products You NEED To Try! @ 0:36
easy little bottle ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 9:28
with the ample you can really see actually on the apple when i open it they have the little numbers so you can see the 0.2 3.4 so you can track that as well ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 9:32

Overall (8)

medicate is one of my favorite brands for skin care ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 7:23
really been enjoying this ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 7:27
give this product all 5 stars, currently one of my favorite vitamin c's ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 7:20
I did really like this actually ▶ Beauty Empties Feb 24 - Products I've Used Up In Feb 24 @ 6:59
i really like this product ▶ My First Skincare Project Pan! April 2022 @ 4:50
love this ▶ HOW TO BUILD AN EFFECTIVE SKINCARE ROUTINE!! || BUSY MOM SKI @ 3:20
so so good ▶ My full skincare routine, age 30-60, sharing all my favourit @ 11:53
most advanced day care cream ever ▶ My full skincare routine, age 30-60, sharing all my favourit @ 10:29

Long-Term Results (7)

collagen boosting ▶ MINIMALIST SKINCARE | 3-Step Effective Routine for Great Ski @ 10:37
96 of users really agreed that this helped to reduce the amount of wrinkles and stuff and produce some overall nicer and firmer look of the skin the plumpness as well within a period of at least seven days ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 10:00
help to firm this skin ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 4:03
supports your skin's natural exfoliation process ▶ My full skincare routine, age 30-60, sharing all my favourit @ 9:19
reduces wrinkles in 7 days ▶ This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER T @ 1:32
good to use also if you've damaged Your Skin Barrier ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 10:28
prevent sun damage and stimulate production of collagen and reduce hyperpigmentation ▶ Trying Medik8 for a month to see if I improve my skin @ 2:08

Application Experience (6)

feels like a really nice soft luxurious night cream ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 8:18
recently started using ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 6:48
feel that vitamin c really tingling my skin it's lovely ▶ AM SKINCARE ROUTINE #madhippie, #medik8 #cerave @ 8:24
really refreshing ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 4:29
nice and luxurious ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 8:10
feels really nice ▶ Unboxing Medik8 | A Good Daily Skincare Routine @ 6:30

Value for Money (4)

reap the best benefits from a vitamin c serum by using it up while it's fresh ▶ My First Skincare Project Pan! April 2022 @ 4:58
I definitely would repurchase this actually ▶ Beauty Empties Feb 24 - Products I've Used Up In Feb 24 @ 7:06
true skin vitamin C serum it's like 20 at Target and it's so good it has vitamin C antioxidants it does have hyaluronic acid and it's perfect for those who have oily prone skin really inexpensive and really effective ▶ The ONLY Ingredients That Stop Hyperpigmentation (And Revers @ 10:12
more affordable ▶ My full skincare routine, age 30-60, sharing all my favourit @ 8:23

Effectiveness (3)

calm those signs and symptoms down to quite a good degree ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 9:09
has a time release technology ▶ Trying Medik8 for a month to see if I improve my skin @ 9:11
works faster than a lot of the other products ▶ My full skincare routine, age 30-60, sharing all my favourit @ 11:40

Cons (33)

Value for Money (7)

a bit pricey ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 7:48
may not be available in your country ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 7:51
extremely expensive ▶ AM SKINCARE ROUTINE #madhippie, #medik8 #cerave @ 4:47
hefty price tag it is retailed at around 59 pounds ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 10:51
would i repurchase it not for now ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 8:11
around the 60 pounds mark so it is a higher price point ▶ Medik8 - FANTASTIC skincare. Some of my beauty favourites! @ 8:21
medicaid was kind of expensive ▶ Trying Medik8 for a month to see if I improve my skin @ 11:17

Ingredients (7)

any oxygen or light can break down the quality ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 2:16
not while pregnant or breastfeeding ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 3:34
sea Tetra that's not Lux and I believe it has a lower percentage of the THD and it doesn't have as many ingredients ▶ THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! @ 7:06
has a fragrance (potential con if sensitive to fragrances) ▶ Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra @ 7:10
first ingredient here is ceminsia oils two out of five in the comedogenic scale ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:19
added limonene central linoleum and geranium these are all fragrances ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:55
contains silicones ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:26

Packaging (5)

i understand why the bottle is opaque to maintain the integrity of the formulation but if i want to repurchase this i don't know when to do so because i cannot tell how much i've used out of it ▶ My First Skincare Project Pan! April 2022 @ 5:55
try me size cleanser ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 0:36
the bottle is so opaque i cannot tell where i have reached ▶ My First Skincare Project Pan! April 2022 @ 5:35
it is tiny ▶ My First Skincare Project Pan! April 2022 @ 4:53
could be a better formula because product can be oxygenated and this is not in an airless pump so it has oxygen around it ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:43

Scent (5)

doesn't smell great it just certainly doesn't smell of oranges which you think vitamin c would but it doesn't it smells very chemically ▶ AM SKINCARE ROUTINE #madhippie, #medik8 #cerave @ 6:46
smells of a clinic a changing like a it's like walking into a dentistry clinic it's a very medical smell ▶ AM SKINCARE ROUTINE #madhippie, #medik8 #cerave @ 6:06
smells so bad ▶ Trying Medik8 for a month to see if I improve my skin @ 11:47
does have a smell ... kind of like a plant smell ▶ I’ve changed.. discussing new night routine (Ft. Medik8) @ 6:10
does not smell nice at all ▶ Trying Medik8 for a month to see if I improve my skin @ 8:28

Skin Irritation/Sensitivity (4)

can cause extra sun sensitivity ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 4:16
a bit stingy for me ▶ AM SKINCARE ROUTINE #madhippie, #medik8 #cerave @ 5:52
can create some sensitivity ▶ Skincare Essentials! Skin Expert Kristy Pitman reveals that @ 3:31
wouldn't recommend it for acne ▶ Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | B @ 5:23

Effectiveness (3)

not sure it actually did anything for my face ▶ Trying Medik8 for a month to see if I improve my skin @ 13:26
used to stronger products and i've used stronger vitamin c in the past so this did not really do a lot for me ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 7:54
not blown away it did not give me amazing results ▶ SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/M @ 7:48

Texture & Absorption (1)

a little bit oily so i tend to use a little bit less than i would normally ▶ My First Skincare Project Pan! April 2022 @ 5:13

Visible Results (1)

haven't seen that much of improvement ▶ Trying Medik8 for a month to see if I improve my skin @ 10:25

Review sources

Medik8 Tetra-C Vitamin C Serum | Medik8's C-Tetra by Julianna Henricus — 23 pros, 3 cons
I’ve changed.. discussing new night routine (Ft. Medik8) by Tashana Lindo — 18 pros, 2 cons
Skincare Essentials! Skin Expert Kristy Pitman reveals that the Medik8 ABC Kit is a must have 4 All! by Brow & Skin Renovation — 13 pros, 5 cons
My full skincare routine, age 30-60, sharing all my favourites!!!!!! by Nikki Ryan — 11 pros, 0 cons
My Favorite Medik8 Products You NEED To Try! by Jillian Gottlieb — 10 pros, 0 cons
THE FIRST SKINCARE I WOULD BUY IF I LOST EVERYTHING! by Mandy Davis MUA — 8 pros, 1 cons
SHARING MY RECENT SKINCARE EMPTIES WITH YOU--VOTARY/ELEMIS/MEDIK8/VERSO -- WOULD I REPURCHASE ANY? by Wiesje Weeber — 6 pros, 3 cons
Trying Medik8 for a month to see if I improve my skin by Life of Jenny ! — 4 pros, 5 cons
This is THE BEST ANTI-AGING SERUM I have EVER Used! BETTER THAN RETINOL!!! Over 50 by Graceful Beauty — 8 pros, 0 cons
Doctor V - Medik8 Watch Before You Buy | Skin Of Colour | Brown Or Black Skin by Dr. Vanita Rattan — 3 pros, 5 cons
Unboxing Medik8 | A Good Daily Skincare Routine by BlondeTeaParty — 8 pros, 0 cons
AM SKINCARE ROUTINE #madhippie, #medik8 #cerave by Penelope J — 3 pros, 4 cons
My First Skincare Project Pan! April 2022 by Skincare by Gelique — 2 pros, 4 cons
Medik8 - FANTASTIC skincare. Some of my beauty favourites! by The World Of Craig — 5 pros, 1 cons
MINIMALIST SKINCARE | 3-Step Effective Routine for Great Skin Over 50 by Beyond50Skin — 5 pros, 0 cons
VITAMIN C Hall Of Fame 2025 - Best & Worst Vitamin C Serums by Mad About Skin — 5 pros, 0 cons
Secrets for Glowing Skin | Deni Kiro Style by Deni Kiro Personal Stylist London — 3 pros, 0 cons
HOW TO FADE DARK SPOTS & HYPERPIGMENTATION / The best skincare products by James Just Now — 3 pros, 0 cons
Beauty Empties Feb 24 - Products I've Used Up In Feb 24 by Sarah Dawn — 2 pros, 0 cons
TIRED MUM EASY SKINCARE | MAKE UP REMOVAL | EVENING & MORNING SKINCARE ROUTINE | BEST FACE PRODUCTS by Darcia Keane — 2 pros, 0 cons
HOW TO BUILD AN EFFECTIVE SKINCARE ROUTINE!! || BUSY MOM SKINCARE ROUTINE - UPDATED!! by Skin Talks with Katie — 2 pros, 0 cons
The ONLY Ingredients That Stop Hyperpigmentation (And Reverse It) by Cassandra Bankson — 1 pros, 0 cons

Frequently asked questions

Is the Medik8 C-Tetra Advanced Vitamin C Serum worth buying?

Based on 22 independent YouTube reviews, the Medik8 C-Tetra Advanced Vitamin C Serum scores 4.3/5 with 145 positive and 33 negative points mentioned by reviewers, placing it #11 in the Serums & Treatments category.

What do reviewers like most about the Medik8 C-Tetra Advanced Vitamin C Serum?

The most praised aspects are ingredients, texture & absorption, visible results — Ingredients (29 mentions), Texture & Absorption (27 mentions), Visible Results (19 mentions).

What are the most common complaints about the Medik8 C-Tetra Advanced Vitamin C Serum?

Reviewers most frequently criticize value for money, ingredients — Value for Money (7 mentions), Ingredients (7 mentions).

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