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C1 Vitamin C Power 1 Serum sample

The C1 Vitamin C Power 1 Face Serum is formulated with two forms of vitamin C (one oil-soluble, the other water-soluble), which work in synergy with EGT Amino Acid to restore lost radiance and refine the complexion.

Powered by our exclusive TTS³ technology.

Clinically Proven Results

86% said skin instantly feels illuminated.*
100% showed a decrease in dullness in two weeks.**
100% showed a reduction in dark spots in two weeks.**

90% said skin's clarity had improved in four weeks.*
96% showed improvement in hyperpigmentation in four weeks.**
100% showed a brightened and illuminated complexion in four weeks.**

Supercharged Actives

  • 2 forms of vitamin C (one oil-soluble, the other water-soluble) brighten the complexion, improve hyperpigmentation and boost collagen production
  • EGT Amino Acid enhances vitamin C activity by ‘recycling’ it, contributing to superior antioxidant protection and illuminating effects
  • Niacinamide improves skin’s natural resilience while helping prevent hyperpigmentation
  • Tranexamic Acid can lighten pigmentation and dark spots caused by excessive sun exposure

*Results based on an independent clinical consumer trial
**Results based on an independent clinical instrumental trial

Customer Reviews

Based on 8 reviews
88%
(7)
13%
(1)
0%
(0)
0%
(0)
0%
(0)
J
Jo B
First time using this vitamin C product

Iam a super fan of many other Sarah Chapman products but this is the first time I've tried this vitamin C product. I have sensitive skin so was a little wary, but it seemed to smooth some of my fine lines and made my skin look more radiant. Sample was a little small to see longer term effects though.

Dear Jo,

Thank you for taking the time to share your experience with our C1 Vitamin C Power 1 Serum sample. We are delighted to hear that you are a fan of our other Sarah Chapman products and that you gave this vitamin C product a try.

We completely understand your concerns about having sensitive skin, and we are happy to hear that our serum was gentle and effective in smoothing fine lines and improving radiance.

Thank you again for your feedback, and we hope to continue providing you with exceptional skincare products in the future.

Best wishes
Jack
Sarah Chapman Customer Care

S
Seddy
Face cream

Received a sample used a couple of times was not enough to give review as was used with other samples. Texture was good easy to apply and pleasant overall.

Dear Seddy ,

Thank you for taking the time to share your thoughts on our C1 Vitamin C Power 1 Serum sample. We appreciate your feedback and are happy to hear that you found the texture to be good and easy to apply.

We are sorry to hear your thoughts on the limited amount of sample provided and understand that it may not have been enough to give a full review, and this has been passed to the relevant team.

Best wishes
Jack
Sarah Chapman Customer Care

J
Julia Trustram Eve
the ultimate cleanse

I'm delighted to have had a chance to try this cleanser. I found the video of how to do a really proper cleanse from Sarah Chapman, and used it with this sample. It felt great - on both counts! Looking forward to using this cleanser again soon

Dear Julia,

Thank you so much for sharing your experience with our Ultimate Cleanse.

We’re thrilled to hear that the video guidance enhanced your cleansing ritual and that the product left your skin feeling so good. It’s wonderful to know you enjoyed both the texture and results, and we can’t wait for you to continue your journey with Ultimate Cleanse.

Warmest wishes
Jack
Sarah Chapman Customer Care