C-Tetra® Advanced

Overall rating: 4.872264 / 5 from 3609 reviews.

AI Generated Review Summary

C-Tetra® Advanced offers a highly effective vitamin C serum that provides visible skin brightening and wrinkle improvement within 7 days. Praised for its pleasant citrus scent, smooth texture, and excellent absorption, it leaves the skin feeling refreshed and glowing. Customers appreciate its consistent results and the noticeable improvement in skin brightness and smoothness.

Summary topics

  • Product Texture (19%): Based on a significant number of customers, the texture of this product is highly praised and considered great.
  • Vitamin C Source (7%): It was noted by customers that this vitamin C is a great and stable source of vitamin C.
  • Product Scent (12%): Customers expressed appreciation for the pleasant citrus scent of the product, which was mentioned multiple times in the reviews.
  • Skin Feel (18%): Customers keep praising how the product feels on their skin, describing it as wonderful, excellent, and great.
  • Skin Glow (8%): It was reported by customers that the product gives a lovely, smooth, and natural glow to the skin.

Review topics: ["skin","serum","texture","feels","absorbs","smell","vitamin c","looks","glow","results","difference","irritation","consistency","formula","buy","cream","works","size","improvement","sample","use","effect","complexion","spots","addition","medik8","vit c","face","quality","bottle"].

Review highlights

  • "Smells nice and my skin looks fantastic!" — Marieke R.
  • "It has a lovely light texture, easily absorbs and made my skin feel wonderful." — Rebecca T.
  • "The texture is lightweight and absorbs beautifully, leaving my skin feeling fresh, hydrated, and subtly glowing." — Monika M.

Reviews

Lovely serum for brighter skin

"I've been using Medik8 C-Tetra Advanced for a few weeks and so far I'm really enjoying it. The texture is lightweight, absorbs nicely and works well under my moisturiser. My skin looks a little brighter and feels smoother, although I think it needs more time to see the full results. It's quite expensive, but a little goes a long way. Overall, a really nice addition to my morning routine."

— Adela D. (5/5)

Better than SkIn C IMO

"I’m a die hard skin care addict! I buy and try everything. Korean, boutique brands, derm brands and this is my favorite top three Vitamin C. I alternate with Skin C’s and honestly I love the texture of this formula better. It’s not heavy and adds a beautiful glow! I don’t have any discoloration concerns, but definitely keeps my skin youthful and glowing!!!! I keep a bottle on backup… and never run out!"

— Natalie H. (5/5)

I bought this product as

"I bought this product as a birthday gift for my uncle. After using for 5 weeks, he noticed how bright and smooth his skin looked. He also noticed a more even skin tone. With it being a high concentration vitamin c product, it has been completely compatible with his skin. It has a beautiful texture and glides onto the skin with complete comfort. The CSA recommendation has been a complete game changer for him."

— Alysha K. (5/5)

A lovely serum for brighter, radiant skin!

"I’ve really enjoyed using Medik8 C-Tetra! It leaves my skin feeling soft and hydrated, with a beautiful, healthy glow. My complexion looks fresher, brighter, and more even, and the lightweight texture fits perfectly into my morning skincare routine. Very happy with this serum!"

— Yelyzaveta D. (5/5)

Like it.

"I really like Medik8 C-Tetra. It has a gentle, gradual effect rather than delivering instant results. It’s suitable even for sensitive skin, as it doesn’t sting or cause irritation. A great vitamin C serum for those who prefer a gentle approach to skincare."

— Zhanna K. (5/5)

Great product

"One of the best serums I have ever used. It applies nicely, absorbs easily, and doesn’t leave any sticky or greasy residue. It also has a pleasant, light scent. My skin looks more radiant, fresh, and healthy after using it."

— Svitlana B. (5/5)

Visible results and lovely texture

"I really love this serum! I noticed that my pores look smaller and my skin tone has become more even. The texture is lovely — it absorbs very quickly, doesn’t feel heavy or sticky, and layers beautifully under any moisturiser. I’m very happy with the results and will definitely continue using it!"

— Alla B. (5/5)

The best Vitamin C in the Medik8 range

"I have sensitive skin with rosacea, and I like using products containing vitamin C to strengthen blood vessels. This serum has worked best for me—it is lightweight, non-greasy, and absorbs quickly into the skin. It has a subtle, pleasant citrus scent, and leaves the skin looking radiant. For better results, I apply Exo-PDRN Prismatic+ over the C-Tetra Advanced Gel-Serum, and then finish with a day cream."

— Oleksandra M. (5/5)

If you get anything from Medik8 get this !

"This is the best vitamin c serum I've ever used. So gentle on the skin and leaves an unbelievably gorgeous glow on the skin. Feels comfortable and hydrating. If you want to try one product from medik8 let it be this one!"

— Halima M. (5/5)

Perfect for my sensitive rosacea prone skin

"I've tried many vitamin C serums and products, but so many irritate my skin. I have type 1 rosacea and it's been a journey trying to find something that works. The C-Tetra Advanced has been a godsend. The consistency is very nice and I've seen visible results. It brightens my skin and also keeps it hydrated, while doing what a vitamin C should do and protect me from antioxidants. I'll be repurchasing this as long as it's available LOL"

— Amber L. (5/5)

Q&A

Hello, which order do I layer C-Tetra Advanced and Niacimide Peptides? There seems to be contradictory advice on the product pages. Many thanks, Emily
Hi Emily, apologies for the confusion! C-Tetra Advanced is emulsion-based, unlike the rest of the C-Tetra family which are oil-based, so with C-Tetra Advanced and Niacinamide Peptides, the order does matter. We recommend applying Niacinamide Peptides first, followed by C-Tetra Advanced. Both are typically applied towards the end of your routine, followed by moisturiser and SPF in the morning.
Can i use this and tirtir 12% azelaic acid in the morning?
Hi! Generally, yes, you can use these together in the morning. We’d recommend introducing them gradually if you’re new to either product, and always finish with SPF.
I use c extra luxe but looking to move onto advanced and want to check ingredients. I am allergic to polysorbate 80
Hi Frances. C-Tetra Advanced does contain polysorbate, so if you have a known allergy to polysorbates, we wouldn’t recommend switching to this product without first checking with your healthcare professional. We’d also recommend reviewing the full ingredient list and carrying out a patch test before use.
Hi, I’m currently using the C-tetra luxe, is it possible to alternate this with the C-Tetra advanced?
Hi Gill, great question! You certainly could alternate C Tetra Luxe with C Tetra Advanced if you wanted to keep both within your routine.
Can I use these with NIACINAMIDE PEPTIDES?
Hi Jade, yes, Niacinamide Peptides and C Tetra Advanced can be used together. Niacinamide Peptides would be used first as it is water-based.