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C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
C-Tetra™ Advanced Gel-Serum
4.9
156 global reviews
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j**5
·
Verified purchase
US
Easily fits into my morning routine. No fabulous changes yet but hopeful that results will exceed previous product use
Item:
C-Tetra™ Advanced Gel-Serum
2025-09-27
M**A
·
Verified purchase
US
The Best C on the market! Non irritating and wonderful formula! Great when paired with the peptides!
Item:
C-Tetra™ Advanced Gel-Serum
2025-09-06
US
My favorite product for radiant skin! I ordered it in full size
2025-08-23
US
Love this product, feels great on the skin and noticing the effects already
2025-08-22
US
It's more visible on aging skin. My skin is less affected, but it smells so good. And texture is very pleasant.
2025-08-22
US
The gel-serum texture is simply lovely. It absorbs quickly, leaves my skin looking more even-toned and refreshed, and adds a glow without any irritation.
2025-08-21
US
Ik gebruik C-Tetra Advanced van Medik8 nu een tijdje en ben er heel blij mee. Zodra ik het heb opgedaan, zie ik direct dat mijn huid gaat stralen en frisser oogt. Het voelt licht en prettig aan op de huid, trekt snel in en laat geen plakkerig laagje achter. Voor mij is het belangrijk om mijn huid goed te beschermen tegen vroegtijdige veroudering, en met dit product heb ik echt het gevoel dat ik daarin investeer. Ik merk dat mijn huid egaler en gezonder oogt. Zeker een aanrader!
2025-08-21
US
Another great product from Medik8. The appearance of my skin and fine lines has improved using this product
2025-08-20
US
This smells lovely and absorbs quickly. I definitely have noticed a difference in my skin and it just looks better and healthy. (43) I have very sensitive skin and I had no problem at all. Will definitely be buying again.
2025-08-20
US
Great serum, made my feel like fresh, nourished and not dull. I have been using it before my regular moisturiser and after vit c toner in the mornings. As all the Medik8 products - this one also didn't dissapoint!
2025-08-19
US
Una pasada de producto, desde los primeros días ves los resultados, además la textura es muy ligera. Lo recomiendo totalmente
2025-08-18
US
A lightweight invisible serum that just seems to vanish after a few seconds, my skin looks fresher and feels smoother
2025-08-17
US
Ik gebruik al jaren een vitamine c serum; echt onmisbaar in mijn ochtendroutine om bruine vlekken door de zon te voorkomen. Ik gebruikte een ander/duurder merk, maar ik heb mijn nieuwe favoriet gevonden!
2025-08-16
US
Ik was heel benieuwd naar dit product, na al jaren de C tetra luxe te gebruiken. Resultaten kan ik nog weinig over zeggen aangezien ik het te kort gebruik maar het voelt aangenaam op de huid en ik verwacht uitstekende resultaten te kunnen behalen, zoals altijd met de producten van Medik8.
2025-08-16
US
I am enjoying using this product. I have easily irritated skin and this has not cause a reaction. Goes on smoothly and has brightened my skin.
2025-08-16
US
This is my second bottle. I am happy with results, my skin looks more healthy and glowy.
2025-08-15
US
My skin really enjoyed trying this new cream. It sunk in well when I applied it, my skin felt moisturised and happy. My skin definitely appeared brighter and smoother. Absolutely no reaction to using this either which was a bonus.
2025-08-15
US
Great product! Easy to apply, absorbed quickly and not oily. THe texture and tone of my skin has improved in the first two weeks. I am alredy using it for one month, and combined with Liquid Peptides Advanced, Crystal Retinal 3 and the night cream, some dark spots have been reduced. Still, waiting for wrinkles reduction, specially those in eye area. Hope not to wait too much!
2025-08-15
US
Very good product effective does what itvl says about to reorder reduced redness enhanced complexion
2025-08-14
US
I have sensitive skin, and I usually cannot use a Vitamin C serum. This Vitamin C is gentle on my skin, and I can tell my uneven skin tone is getting better.
2025-08-14
About this product
Details
BrandMedik8
Dangerous Goods Or Hazardous MaterialsNo
Flammable LiquidNo
ManufacturerMedik8
IngredientsWater,Tetrahexyldecyl Ascorbate,Isododecane,Propanediol,Acetyl Glucosamine,Squalane,Tocopherol,Acetyl Zingerone,Camellia Sinensis (Green Tea) Leaf Vesicles,Hydroxyacetophenone,Sodium Hyaluronate,Cellulose,Avena Sativa (Oat) Kernel Extract,Glycerin,Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer,Citrus Grandis (Grapefruit) Peel Oil,Sucrose Stearate,Tetrasodium Glutamate Diacetate,Ethylhexylglycerin,Acrylates/C10-30 Alkyl Acrylate Crosspolymer,Xanthan Gum,Sodium Benzoate,Cellulose Gum,1,2-Hexanediol,Polysorbate 60,Sorbitan Isostearate,Citric Acid,Phenoxyethanol,Citral,Linalool,Limonene
Net Weight130g
Product description
Defend against the visible effects of premature skin aging and achieve accelerated skin brightening with a next-generation combination of 20% Vitamin C and Phyto Exosomes.  
Delivered in a non-greasy, lightweight gel-serum, this intelligent ingredient complex combines potent, stabilized, Vitamin C with restorative Phyto Exosomes for visible brightening, skin smoothing, and daily antioxidant defense. 
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Videos for this product
Creator earns commission
Simplified AM #skincare routine that focuses on #hydration with #toners and #actives for #antiaging  #hydratedskin #koreanskincare #skincarethatworks #skincareroutine #skincareover50 #skinprep  @haruharu wonder Official US  @acwell_official @Prequelskin @Medik8 US @Medik8 @ALLIESOFSKIN @sonsie @Experiment Beauty
Cherie Seaswan Makeup Tips 55+
255
Creator earns commission
Replying to @KiKi #@Medik8 @Medik8 US has #growthfactor and #vitaminc on sale. #tiktokshoplabordaysale #skincare #medik8
Cherie Seaswan Makeup Tips 55+
102
Creator earns commission
I’ve always loved Vitamin C but I’m obsessed with this new one from @Medik8.  It doesn’t break me out, and it has the loveliest texture. Drop a comment if you’re curious about Medik8. Their products are incredible.  #medik8 #vitamincserum #over40skincare
Jen | Aging on MY Terms
51
Creator earns commission
@Medik8 has the best Vitamin C that I’ve used and it’s on sale right now. Hurry before the sell ends for Labor Day! #vitaminc #ctetra #sensitive skin
DevanMarie
44
Creator earns commission
Replying to @ashlyn  My favorite brand for many years now - @Medik8 US . It’s the foundation, the base of my skincare routine. All the products I use can be found in my showcase. Treat you skin with something good this holiday season 🌟 #smallcreator #tiktokshopfinds #skincare #skincareroutine #medik8
ms.nataliejones
41
Creator earns commission
#vitamincserum #brighterskin #finelinesandwrinkles #texture#phytoexosome @Medik8 US
Jennifer Martin
28
Creator earns commission
What are your morning non-negotiables?   @Medik8 @Ultra Violette Australian SPF  #morningskincare #vitaminc #over40skincare #morningskincareroutine
Jen | Aging on MY Terms
23
Creator earns commission
Actions speak louder than words #behelpful #selflove #selfcare #selfimprovement #mentalhealth #mentalclarity #connection #connectionisoursuperpower #recovery #skincare #life #lifestyle #contentcreator #love #actionsspeaklouder
Katekoko83
21
Creator earns commission
Morning Medik8 Favorites. Non negotiables!! Oxy-R for texture, the new C-Tetra Vitamin C Serum which I LOVE and the Liquid Peptides Advanced MP that I won’t be without!! #morningskincare #skincare #actives #afterskinflooding #peptides #vitamincserum #productsthatwork @Medik8 US
Susan - Agingwithgrace
19
Creator earns commission
#vitaminc #serum#darkspots #finelinesandwrinkles @Medik8 US
Jennifer Martin
17
Our Black Friday sale ends soon! Shop our clinical skincare at 30% off sitewide on our website and TikTok Shop until tomorrow. US & Canada only #blackfriday #blackfridaydeals #sales #giftsforher #cybermonday
Medik8 US
17
Creator earns commission
I hope this video is helpful to my friends out there who do suffer with a lot of the same situations and skin conditions that I deal with. Any questions please put something in the comments. I’m here to assist in the best way I possibly know how.!! ##skincareroutine##sensitiveskin##rosacea##dry##dehydrated##skincaretips##koreanskincare##skinflooding##medik8##dearklairs##manyobifida##acwell##tiktokshopsummersale##dealsforyoudays##brandday##tiktokshopcreatorpicks##funinthesun##sensitiveskinroutine@@Dear Klairs@@Medik8 US@@acwell_official@@ma:nyo US@@imfrom_us
Katekoko83
16
Creator earns commission
How do I get my skin to glow? #skincaretips #skincareactives #skincarepeptides #alliesofskin #medik8 #multipeptideserum #antiaging  @@ALLIESOFSKIN@@Medik8 US@@Sente Labs
Katekoko83
15
Creator earns commission
Top skin care products to get real skin care results @One Skin @Medik8 US @ALLIESOFSKIN @True Botanicals @PlatedSkinScience #luxuryskincare #topskincareproducts #bestskincareproducts #peptides #growthfactor
Katekoko83
15
Creator earns commission
Of course you don’t have to use as many actives as I do. I have been testing out different things on my skin for many years to see the difference in what it will do. I have found that these particular skin active do wonders to my skin. #skincare #skincareactives #skincareroutine #medik8 #medik8peptides #advancedpeptides #growfactors #platedskinscience #selfcare #selflove #madeca #tiktokshop #tiktokmusthaves #musthaves #dealsforyoudays #tiktokshopsummersale #foryou #brandday @PlatedSkinScience @Medik8 US @HELLOCOS
Katekoko83
14
Creator earns commission
Replying to @Misplaced Magical Creatures Ignore the squinting! The morning summer sun comes right in my bathroom window! Video number one with a some of my morning products! There are one or two more that I use as needed and I’ll do another post about those. I’ve linked the Vit C serum that I am absolutely in love with if you want to give it a try!  Thanks to Jayde for suggesting this line ages ago at the exact time I was looking for a new Vit C serum! #medik8 #vitamincserum #ctetraadvanced #womenover50 #skincare#skincareover40#skincareover50
✨Drowned in Moonlight✨
12
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Tiktok Shop must have products #musthaves #tiktokshopmusthaves #bestproducts #tiktokshopcreatorpicks #selfcare
Katekoko83
12
Creator earns commission
Self care = self love ❤️ skincare for mature skin #selfcare #selflove #skincare #tiktokshopcreatorpicks #tiktokshopfalldealsforyou @Medik8 US @The INKEY List @ALLIESOFSKIN  @BIOHEAL BOH
Katekoko83
11
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