High-Potency Serum

High-Potency Serum is a lightweight liquid containing the full complement of the Cellex-C signature ingredients — pure L-ascorbic acid (vitamin C), tyrosine and zinc sulphate. The serum works synergistically to encourage a firm, youthful, elastic quality in the skin.

  • Regular use will dramatically reduce the visible signs of aging — fine lines, wrinkles, age spots and sagging skin.
  • Helps older and prematurely aged skin to look, behave and feel like younger skin.
  • This formulation is extremely well tolerated and can be used by men and women without fear of troublesome skin reactions such as sunlight sensitivity.
  • Treated skin will gradually appear firmer and smoother with improved texture, tone and overall radiance.
  • Generally improvement in the overall appearance of the skin can be seen within 8–12 weeks of daily use.

  1. Cleanse and Tone.
  2. Apply Cellex-C High-Potency Serum*. Squeeze 4–5 drops into the palm of your hand. Using fingertips smooth the serum over your face (avoiding eye area), neck and V of chest.
  3. Apply Hydra 5 B-Complex.
  4. Apply moisturizer or sunscreen of choice.

*Cellex-C treatment formulations should be applied every 24 hours.

USE: Morning or Night.

SKIN TYPE: Suitable for all, except extremely sensitive skin.

ACTIVE INGREDIENTS: Ascorbic acid, Tyrosine, Zinc, Bioflavonoids.

SIZE: 30 mL / 1 Fl. Oz.

Works Well With

Ratings & Reviews

This is an amazing product that truly lives up to the claims. I have been using the Cellex-C High-Potency Serum with the Hydra 5 B-Complex for over 20 years and unreservedly declare that it's the best product I've ever used. My skin looks much younger than my years suggest, as I am constantly told. Even my GP marvels at my skin! I won't waste my time and money on anything else.

Deb W., New Zealand. 6/17/2019

I've been using Cellex-C High-Potency Serum paired with the Hydra 5 B-Complex and it's amazing how my skin has improved! Not going to stop using this ever! I also purchased the eye cream GLA and Seline E cream as a rich night time mousturiser... I love the skin I'm in... Thank you Cellex C!

Runa A., Liverpool, UK. 11/5/2018

I began using your products in the early 90s. My mother who was in the skincare business recommended the product...Best advice I ever took from my mother. I incorporate a three step routine daily. Cellex-C Serum, Hydra 5 B-Complex and Seline-E (sometimes alternating with GLA). I can without the slightest hesitation state this product lives up to it's claims 100%. I am 61 yrs old and have the skin of someone in there early to mid forties. No one to this day outside of my immediate family has ever come close to guessing my actual chronological age. Most laugh with disbelief when I tell them my real age.

Peter W. 6/13/2017

SkinCeuticals vs Cellex-C
Cellex-C give actual results get rid of fine wrinkles while evening out T-zones with dry areas. I've used it for over 15 years and had the chance to try its competitors. Cellex-C High Potency and Hydra B Complex together works wonders. It's really the best there is.

Leila K. 1/3/2017

Bagus banget!

Titien L. 11/30/2016

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Best Anti-Aging Serums

Why it's great: Users say this anti-aging serum is 'worth every penny,' as it leaves skin 'looking even-toned and feeling as soft as a baby's bottom.' Reviewers say it also 'resolved acne and took away fine lines and wrinkles' and didn't leave skin feeling oily. 'I highly recommend it for anyone with oily skin and/or acne,' says one user. 'It's amazing!'


Try to save your skin — Topical vitamin C treatments are all the rage among facialists and dermatologists, and they’re even popping up at cosmetic counters. The trend can be traced back to the now classic Cellex-C Serum, which has debuted in 1994 and whose cult status has triggered a swarm of mimics.