Name: C-Tetra Advanced Gel-Serum
Brand: Medik8
Rating: 4.2 (26 reviews)

The whisper

A gentle glow that occasionally struggles with layering

This high-strength formula is widely praised for its soothing, non-irritating finish on sensitive skin. While it delivers a reliable radiance, some users find the texture oily or prone to pilling under sunscreen.

84%loved

1 📕57%♪85%188 voices

"Another excellent skin care pick from Medik8. This is the Cetra 20% vitamin C gel serum. Medicate products are just brilliant, and this specific serum is strong enough that you see results from it, but not too strong that it's irritating."

Whispered by Fleur De Force · 9mo ago

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Who’s talking about it

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Fleur De Force

1 mention about this product

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57%

😊 Positive

29%

💬 Neutral

14%

👎 Negative

Users generally regard the serum as a high-performance 'treasure' for brightening and a top recommendation for antioxidant routines, though some express concern regarding ingredient safety. It is frequently highlighted as a core component of effective 'Morning C' regimens.

😊

如果我只能选三支Medik8的精华

If I could only choose three Medik8 serums

👎

我真崩溃了爱用好物疑似有苏丹红

I'm really devastated; a favorite product is suspected of containing Sudan Red

😊

最近的一些新尝试，又挖到宝了

Some recent new attempts, and I've found a treasure again

💬

欧娘娘新收的早C晚A提出者Medik8

L'Oreal's newly acquired Medik8, the pioneer of the 'Morning C, Night A' routine

See all 7 posts on Rednote →

85%

😊 Positive

💬 Neutral

10%

👎 Negative

Users highly praise the Medik8 C-Tetra Advanced Gel-Serum for its gentle, non-irritating formula that provides a noticeable glow, though some express concerns regarding its high price point and potential for pilling.

😊

The gel formula is perfect for sensitive skin, mature skin, oily skin, and wears beautifully under m

👎

I love Medik8 and use many of their products, but this serum is very oily and not like any other Vitamin C I’ve used.

😊

It’s a high-strength vitamin C formula, but it feels incredibly gentle - no tingling, no dryness, just glow.

👎

it pills with SPF 😭

😊

This is one of my favorite vitamin c products great for all skin types including sensitive skin