Antioxidants formula on steroids

Power up your skin's radiance with the best Vitamin C serum. Formulated with a high concentration of 20% L-ascorbic acid, Ferulic acid, and Vitamin E (tocopherol) at a low pH. This clinical formula guarantees serum penetration, antioxidant efficacy and stability.Heads up! It may cause a slight tingling sensation at first!

Expected Formulation Results:

  • Skin brightening and even tone by regulating melanocytes
  • Improve firmness by reducing free radicaldamage to collagen & elastic damage
  • Reduce skin inflammation and strength skin barrier

Skin type: Normal, Oily Skin

Skin Concerns: Skin ageing, uneven tone, skin spots, sensitive skin, skin barrier repair

Limited Time Offer: Buy Revitalise C20 and get Exfoliate for Free

(7 customer reviews)

£ 90.00 £ 65.00

A 30-second foaming facial that instantly brightens skin and tightens pores with 20% vitamin C.

Recommended By CosmeDocs (Cosmetic Doctors) Clinic Harley Street | Free Shipping over £50 | Potent Targeted Cosmeceuticals

Vitamin C Advice

Antioxidant neutralise skin oxidants (free radicals) that form due to sunlight, pollution, smoking and even normal biological ageing. The Majority of facial ageing is photoaging (sun damage) and movement (expressions). L-ascorbic acid is the most well studied antioxidant in clinical research.

Vitamin C antioxidant serum also optimises the function of all the cells in the skin by preventing free radical damage. This helps :

  • Melanoctyes: even skin tone by regulating production
  • Keratinocytes (skin cells): strengthen skin barrier
  • Fibroblasts: Produce collagen, elastin, hyaluronic acid.

Newer studies have revealed that reapplying vitamin c serumin in the afternoon helps to build up a high concentration of antioxidant in the skin, creating a reservoir for future protection.

Ferric can turn yellow, normal
Ferulic can turn yellow, normal

Key Formulation Benefits


Benefits of adding ferulic acid + vitamin e

  • Enhanced antioxidant protection
  • Increased stability & longevity of L-ascorbic acid
  • Improved penetration and absorption of active ingredients
  • Brightening and anti-aging benefits


Benefits of adding niacinamide

Niacinamide, also known as Vitamin B3, is loaded with multiple benefits for the skin. It has been added to Revitalise C20 Vitamin C skin serum.

  • Improves skin barrier function & prevents moisture loss
  • Regulates sebum production & minimises pore size
  • Reduces and prevents skin inflammation (Ideal for sensitive or acne-prone skin.

Formulation Science

Active Ingredient(s)

  • 20% l-ascorbic acid
  • Ferulic acid
  • Vitamin E (Tocopherol )

Supporting ingredients

  • Niacinamide
  • Hyaluronic acid

Serum Base

  • ph : 3.0-3.5 stabilised l-ascorbic acid
  • Colour : clear to slight yellow (due to ferulic)
  • Smell : as with ferulic a woody scent free of any fragrance

Glycerin, Purified Water (Aqua), Ethoxydiglycol, L-Ascorbic Acid, Butylene Glycol, Laureth-23,Tocopherol, Ferulic Acid, Panthenol, TEA, Hyaluronic Acid, Sodium PCA, Niacinamide, Phenoxyethanol.

  • null


  • null


  • null


  • null


  • null


  • null


  • null


  • null


  • null


Tips & Suggestions

In the morning, apply SPF to increase sun protection after using the best Vitamin C antioxidant serum, Revitalise C20, when heading outdoors. Sun protection factor (SPF) provides no benefits indoors or away from a window, making the application of unnecessary chemicals avoidable.

Due to the high concentration of ferulic acid (more than other similar formulations), the serum’s colour is naturally slightly yellow.

How To Apply


Place 4 to 5 drops into the palm, using fingers on the other hand, smooth evenly over the entire face and neck. Allow serum to penetrate before applying another product. Use in the morning after cleansing before your sunscreen application.

Before & After


Early Impairment Of Skin
Barrier Function

Early Erythema (Inflammation)
Uneven Skin Colour
Rough Texture
Increased Sebum (oil)


Skin Barrier Function
and Vitality

  • No Erythema
  • Not Sensitive
  • Smooth Texture
  • Even Colour
  • Well Hydrated
  • Congestion Free
  • Oil Controlled

Works Well With

Retinoid Cream


Dual Vitamin A Cream

Retinol is a form of vitamin A that has been shown to improve skin texture, reduce the appearance of fine lines and wrinkles, and increase collagen production. It also helps to unclog pores, which can reduce the risk of acne breakouts.

For daily skincare, it is recommended to use a concentration of retinol between 0.3% and 1%. However, retinol can cause skin irritation, especially in the early stages of use, so it’s important to start with a lower concentration and gradually increase as tolerated.

Learn More


  1. Rated 5 out of 5

    My new holy grail serum!

    I have been using this serum for over a month now and I can safely say that it is by far the most effective vitamin C serum out there! Love the fact how lightweight and non-greasy this serum is – it sinks into my skin really quickly.
    I have also paired it with their retinol cream for my nighttime skincare routine. Obsessed? Yes.

  2. Rated 5 out of 5

    Have been using this product for a number of years now – it’s very easy to apply and has become a solid part of my morning routine. I think it’s great for evening out skin tone and combating the effects of too much sun. I often get compliments on my skin. Planning on making this a permanent part of my skincare set up.

  3. Rated 5 out of 5

    Best product! I have acne prone skin and this is the best for sensitive skin. I use it everyday as part of my daily routine

  4. Rated 5 out of 5

    I’ve been using this product for about a year now and I cannot imagine my skincare routine without it! It gives my skin an amazing glow which is perfect before I apply my makeup, however, gives it also me confident boost on my makeup free days! It has evened out my skin tone and another thing I love about this is that a little bit goes a long way so it is definitely worth the price because it lasts a long time. I will keep buying this product and I hope it never gets discontinued as I genuinely cannot imagine my life without it now – absolute game changer.

  5. Rated 5 out of 5

    Revitalize C20 is my all time favorite product from the range of HSF. I must say it is worth buying and it’s results are amazing. My uneven skin tone and sun spots have vanished with the use of this serum. I will keep using this product as my skin tone is getting better day by day. I would highly recommend this product to all those who want to improve their skin barrier, sensitive skin and uneven skin tone.

  6. Rated 5 out of 5

    Amazing product fixed my sensitized skin. I researched on skin barrier repair and chose to start with a vitamin c. It stings a bit in the beginning but within 3 weeks skin feel better and less sensitive skin. The product no longer stings. I only apply 7-8 drops in the morning.

  7. Rated 5 out of 5

    I love this product after been using it 2 weeks. I was deciding between this and the CEFerulic by SkinCeuticals but chose this for three reasons over the CEFerulic. Higher vitamin c, more ferulic and less cost.

Load More
Add a review

Your email address will not be published.

Free Skin Consultation

Get your CosmeDocs Free Skin Consult.

WhatsApp Selfies
(no makeup, no filter, in daylight outdoors)

Share With Us

Skin Advisor By Cosmetic Doctors

HSF Blogs & News

best autumn season skin care routine

Fall into Fabulous Skin: Ideal Autumn Season Skin Care

vitamin c serum for oily skin

Vitamin C Serum for Oily Skin: Taming the Grease, Embracing The Glow

my retinoid cream experience

Confessions of a Beauty Enthusiast: How Retinoid Cream Changed My Life

summer skin care advice

Summer Skin Care: The Ultimate Expert Skin Advice for Hot Weather

retinol benefits against aging

Rewind Time with Retinol Benefits: Let Your Skin Age The Right Way

Face Tightening

How To Brighten Skin: Clinical Skincare To Your Rescue!

best anti aging cream with retinol

Anti Aging Cream: Time To Slow Down The Clock & Speed Up The Results

skin sun damage protection

Undo & Prevent Your Skin Sun Damage With Two Clinical Grade Skincare

skin care routine for men

Skin Care Routine For Men: The Essentials For Your Daily Skin Needs

best vitamin c antioxidant serum

Antioxidant Serum Is Your New Age-Defying Elixir In 2023

best anti wrinkle cream UK

Best Anti Wrinkle Cream For You Is Always Clinically Prepared By Experts

skincare routine for a young skin

From Morning To Night: The Ultimate Skincare Routine For Your 20s

best vitamin C serum for dark spots

Best Vitamin C Serum for Dark Spots: Say Goodbye to Skin Imperfections

retinoids for acne scars

Retinoid Cream For Acne Scars: Get Ready For A Smoother Skin Ahead!

collagen for skin

Collagen for Skin: Two Must Have Skincare Staples For All Ages

gluconolactone for skin

Gluconolactone: A Holy Grail Exfoliant To Step Up Your Skincare Ritual

Retinoid Cream

Go Wrinkle Free with the Best Retinol Cream on the Market

niacinamide benefits for skin

Benefits of Niacinamide: The One Skincare Ingredient That Does It All

ferulic acid for skin

Ferulic Acid for Skin: A Skincare Ingredient Against Pollution & UV Damage

lactic acid for skin and its benefits

Lactic Acid for Skin: The Gentle Yet Powerful Skincare Ingredient You Need

vitamin c serum for face

Vitamin C Serum for Face: A Skincare Must-Have in Your Beauty Arsenal

hyaluronic acid for skin

Hyaluronic Acid for Skin: The Missing Piece in Your Skincare Routine

skin breakout

Your Go-To Advice For Preventing Skin Breakouts

skin care tips while travelling

How To Look Good While Travelling

Misunderstanding SPF

Misunderstanding SPF – Sun Protection Factor

Follow Us

Use #harleystreetformulations To share your skincare favourites

Polynucleotide eyes

Concern Area - Eyes 👀 
 🧬Polynucleotides used to target creppy skin and under eyebags.
🟢Noticed improved skin texture and tone ,reduced fine lines and under eye bags after just one session.

🕛 15 minutes 
💉with or without anesthetic

Have you heard of Trout/ Salmon Sperm DNA treatment? 🧬

Polynucleotides are derived from purified Salmon/ Trout sperm DNA.
Polynucleotides are the gold standard in skin regeneration, utilizing ultra-purified DNA fractions to stimulate natural fibroblast production. This boosts collagen levels by up to 47% and thickens the epidermis by up to 52% in just 23 days. 

lt enhances skin texture, reduces fine lines, targets under-eye bags, restore firmness and elasticity while protecting against cellular damage.

Typically, 2-3 treatments spaced out to 2-4 weeks apart are recommended for optimal results.

#Cosmedocs #harleystreetinstitute #polynucleotides #SkinRegeneration #YouthfulEyes”
Did you know? Polynucleotides extracted from trout sperm are key to groundbreaking genetic research. These complex molecules from fish help scientists understand life’s blueprint! 🧬🐟 #Genetics #TroutSperm ##undereyecircles #londonfashion
Lip enhancement can be approached in two distinct ways: one that is gentle and non-traumatic, leading to natural-looking results, and another that is aggressive, potentially resulting in permanent negative effects. We always adhere to the KISS principle - keep it simple and safe.

#HarleyStreetBeauty #HarleyStreetLips #LondonPoplarAesthetics #SafeCosmeticsHarleyStreet #PoplarAndHarleyBeauty #NaturalLipsHarleyStreet #EastLondonBeauty #HarleyStreetClinics #PoplarBeautyTrends #HarleyStreetSafeFillers
The best approach to treating mature skin involves cautiously distributing fillers throughout its various layers. It’s essential to possess the necessary skills, as administering injectables goes beyond simply following a manual’s instructions!
#aestheticmedecine #dermalfillertraining #antiaging #confidence #cosmedocs #harleystreet
The foundational steps for skin rejuvenation in medical aesthetics begin with initiating retinoid use, followed by a skin peel, then microneedling, and finally PRP treatments. Starting with retinoids activates the skin to produce more collagen, making subsequent treatments like microneedling even more effective.
We have spent a year carefully enhancing this lady’s profile with subtle improvements at @harleystreetinstitute #beautiphication #cosmedocs
Rethink, Reshape, Effortlessly: Liquid Rhinoplasty - The Simple Solution You’ve Overcomplicated - ONLY in professional hand! #nosejob #harleystreet 

If You Were Concerned About Your Nose, Would You Consider A Permanent Surgical or A Long Lasting Non Surgical Rhinoplasty?
“Transforming the essence of beauty across diverse cranial landscapes—brachycephalic grace meets dolichocephalic elegance. Botox crafts a symphony of balance, enhancing the intrinsic charm hidden within every contour. Celebrate your unique cranial silhouette. #BrachycephalicBeauty #DolichocephalicElegance #BotoxArtistry” #masseterbotox #jawlineslimmingbotox

Do You Agree Oval Face Are Aesthetically In Demand?
At times, a procedure is so quick and effective, it’s over almost before it starts. This leaves one feeling conflicted about charging patients the market rate for such swift service. But it’s a testament to the value of experience, not just the time spent, that enables such speedy success. #tweakments #dermalfiller #beautysecrets
Approximately every ten years past the age of 25, the lip corner descends by about 1 mm. For preventive purposes, fillers are applied in small quantities, measured in drops rather than full syringes. #aestheticmedicine #lipfiller #aunaturale
Unveil radiant skin with our top 3 treatments for acne scars at Cosmedocs.

For Bookings Contact:
📱 +44 7735 606447
 ☎️ +08008600178

#cosmedocs#acnescars#treatment#SkincareSecrets #AcneScarSolutions#skinpeel#microneedling
The aging process in the face generally includes a decrease in volume, which causes the skin to sag. Using dermal fillers to replenish this lost volume can successfully elevate and adjust the drooping skin. It’s important to note that facial aging usually follows a sequence of volume reduction leading to skin sagging. Contrary viewpoints on social media regarding this can often be surprising. other treatment videos will be revealed over the next few days.

 #jawlinefiller #aestheticmedicine #dermalfiller
Could this be a major step forward in ensuring the integrity and accuracy of transformational journeys?

Exploring the Frontiers of AI: ChatGPT’s advanced processing capabilities are a game changer, especially in distinguishing authentic before and after results. 

#AIRevolution #AuthenticTransformations #ChatGPT#aestheticmedicine #calfreduction #botox
Enhancing Facial Harmony: Focusing on Key Features to Balance and Beautify Faces with Large Structures and Gentle Jawlines
#FacialHarmony #BeautyEnhancement #JawlineImprovement #FacialBalance #AestheticMakeover #HarmoniousFeatures #GentleJawlines #FacialAesthetics #BeautyGoals #facialsymmetry
Last year, we shared an update about a client who had received fillers from us. Previously, she was having regular Botox only. We’re now excited to show you the results after almost 1 year; she’s had Botox in the meantime. The combination of both treatments has yielded fantastic results #wrinklefree #dermalfillers
At CosmeDocs, we take a comprehensive approach to address under-eye circles, which are often more noticeable from the late 20s onwards. These aesthetic concerns are compounded by the emergence of dips and grooves leading to a sunken mid-face appearance. Our tailored tear trough treatments incorporate both cannula and needle techniques. This dual approach allows for precise augmentation and correction, targeting the various layers of the under-eye area to smooth out dips and grooves effectively. It’s not just about enhancement but restoring a natural, refreshed look, focusing on meticulous volume replacement to ensure seamless continuity and harmony between all facial compartments.
#TearTroughTreatment #AestheticMedicine #FacialRejuvenation #YouthfulGlow #CosmeDocs #SkinCare #UnderEyeCircles #BeautyTreatment #AntiAging #SkinRevitalization #DermalFillers #AestheticClinic #MedicalAesthetics #CosmeticEnhancement #NaturalBeauty #RadiantSkin #HarleyStreet #LookYounger #ConfidenceBoost #BeautifulSkin #dermalfillerstraining
“🚫 Saying NO to Vermillion Border #dermalfillers in Younger Clients 🙅‍♀️

Injecting too much filler into the vermillion border of young clients can lead to unwanted consequences like border spread, fibrosis, and a loss of natural definition. 👄✨

However, in older clients experiencing natural border loss, small, strategic additions can enhance their natural beauty gracefully. 💁‍♀️💉

Balance and expertise are key in achieving beautiful, age-appropriate results! 💖 #dermalfillertraining #aestheticmedicine #AgeGracefully #saynotorussianlips 
#cosmedocs #cosmelips #harleystreetinstitute #botoxtraining #russianlips
There are many reasons to fill crows feet with small volumes of filler including but not limited to:
-collagen production 
-reduces Botox dose & frequency required 
-More natural result than just Botox 

Training video coming soon on @harleystreetinstitute 
#aestheticmedicine #eyewrinkles #cosmedocs #glowandgoclinic
Jawline definition using dermal fillers #jawlinefiller #jawlinecontouring