C-Tetra®

Overall rating: 4.8540425 / 5 from 2350 reviews.

AI Generated Review Summary

C-Tetra® is a lightweight serum formulated with stabilized vitamin C (7%) and vitamin E, designed to brighten uneven skin tone and reduce the appearance of fine lines and wrinkles. It provides a healthy glow, absorbs quickly, and leaves the skin feeling smooth and radiant. Customers have praised its effectiveness and noticeable results in their skincare routine.

Summary topics

  • Healthy Glow (6%): It was highlighted by customers that the product gives a nice glow on the skin and leaves a healthy glow.
  • Absorption Speed (8%): Customers keep praising how well the product absorbs into the skin, describing it as quick and easy to use.
  • Effectiveness (6%): Customers loved the results, with many describing it as great, amazing, and the best they have experienced.
  • Vitamin C Content (7%): Customers raved about the vitamin C, with many describing it as the best they have ever used.
  • Skincare Impact (4%): It was reported by customers that this product has made a huge difference in their skincare routine.

Review topics: [skin, serum, feels, smell, absorbs, vitamin c, glow, looks, texture, results, difference, buy, size, oil, use, formula, irritation, works, face, c-tetra, improvement, consistency, bottle, vit c, effect, medik8, complexion, reaction, spots, lines].

Review highlights

  • "Perfect texture, absorption, smell and the effects are actually noticeable."Adina S.
  • "Skin feels wonderfully smooth, looks radiant and smells wonderful"Joke B.
  • "Very impressed with this serum so far - nice texture and scent and seeing good results."Bailey A.

Reviews

One of my skincare favorites

"C-Tetra has quickly become one of my favorite products from Medik8. It has a lightweight, silky texture and absorbs beautifully without feeling greasy. My skin looks brighter, fresher and more radiant when I use it regularly. I also love how comfortable it feels on my dry skin and how easily it fits into my morning routine."

Inna K. (5/5)

Best Vitamin C

"I’ve tried many different brands of vitamin C, but Medik8 C-Tetra has become one of my favourites. My skin feels softer and smoother, and I’ve noticed it looks brighter with a lovely healthy glow. It absorbs beautifully without feeling sticky or heavy, and a little goes a long way. I’m so pleased with it that I now have my husband using it too! Definitely one I’ll keep repurchasing."

Shermane O. (5/5)

Review I’ve been using C-Tetra

"Review I’ve been using C-Tetra and I’m really impressed with it. My skin feels noticeably smoother, more hydrated and has a lovely healthy glow. It gives my skin that fresh, plump. After using it consistently, my skin just looks healthier and more radiant. Definitely one of my favourite Medik8 products and one I would happily repurchase."

Magdalena H. (5/5)

This is a staple for me

"This has hands down been the best vitamin C treatment I have tried. It absorbs into my skin so well and I feel my overall complexion is much clearer since I started using it. I find layering too many traditional serums impacts my makeup application, so using this oil version has been a life saver. It also feels really nourishing."

Rachel C. (5/5)

Nice product

"I’ve just recently started using the product in the morning to add some brightness to my skin. But the product feels nice on skin, no irritation, no discomfort, no staying oily which is good for me as I have sensitive skin"

Alena Z. (5/5)

Only vitamin c that doesn't break me out

"I was opting out of vitamin C altogether because I could not find one that didn't cause an acne flair up. I LOVE that this is a low dose vitamin C (7%) that doesn't have this effect on me, and feels divine. I love the hydrating lightweight oil that leaves an awesome glow, and that I still get some protection against pollution and free radicals."

Pryscilla B. (5/5)

A firm favourite

"I love this stuff, used consistently I can see a real improvement from this potent formula in the texture of my skin. I use it each morning under moisturiser, it is light but hydrating, it doesn’t make my skin at all oily."

Claire H. (5/5)

Love love love

"I am new to this skincare range and OMG this did not disappoint, I absolutely love this serum and gives my skin the nicest glass skin glow! Feels beautiful. My skin will thank me for this!"

Jude M. (5/5)

My skin loves it

"This vitamin C oil is just gorgeous. I tried a vitamin C cream from another brand which was recommended by a friend, however, it turned my nails orange and put me off using Vitamin C products. But I have recently changed most of products to Medik8 and though I would try this C Tetra as it was clear. It soaks in beautifully, my skin looks really good, I am in my late 50s and got told recently I don't look it. My make up goes on better. Will buy again. Oh and no orange nails yay"

Debbie R. (5/5)

Excellent smell, texture and effect on pigmentation

"C-tetra line of Medik8 are fantastic overall. All the products are very good. I used both the C-tetra and c-tetra deluxe. If you want a lighter serum, c-tetra is excellent. If you need a thicker one, deluxe is really good. Both leave your skin very vibrant and smells excellent. It also worked very well on my pigmentation."

Melis S. (5/5)

Q&A

Good day! In the morning routine I want to use C-Tetra Lipid serum and Clarity Peptides Serum. How to use correctly then or may be not mix them at all?
Hi Halyna, you can absolutely use them together in your morning routine.Apply C-Tetra Lipid serum first, then follow with Clarity Peptides Serum. Finish with your moisturiser and SPF. That order will give you the best absorption and results
Hi there, can you use the C-Tetra with the Hyrd8 B5? If so, which should go on first? Thanks.
Hi Emma, thank you for your question! Yes, you can absolutely apply the Hydr8 B5 serum, before your C-Tetra serum to provide your skin with an extra boost of hydration. This layering ensures your skin stays hydrated while reaping the benefits of vitamin C. Thanks, Medik8 Team
How much C-Tetra should Ii use (I put it on in the morning after cleansing and before moisturiser)? It says the bottle should last up to 6 months but mine lasts about 6 weeks (full size) so I'm wondering if I'm using too much?
Hi Jane, thanks for your question about our C-Tetra! For best results, we recommend around 4-6 drops applied to the face, neck and decolletage (avoiding the eye area directly) and slightly less if you aren't applying to the decolletage for example. Each bottle when used as directed contains up to 200 applications. We hope this helps! Thanks, Medik8.
Для якого віку ця сироватка?
Hello, Thanks for your question. Our C-tetra serum is suitable for age 16 and up. Thanks, Medik8 Team
When do I use this when using with liquid peptides?
Hi Olivia, thanks for your question - for best results, apply Liquid Peptides before C-Tetra. Thanks, Medik8 Team