20% Vitamin CE & Ferulic

Antioxidant | Intense Cellular Nourishment

(6 customer reviews)

£ 90.00 £ 65.00

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


Product Information

Revitalise C20 serum is a unique synergy solution that combines the best of selected potent antioxidants in a hyaluronic acid base for exceptional results. Agents that act as antioxidants and skin brighteners combine to revitalise the skin. Sun rays lead to free radicals such as superoxide which antioxidants neutralise. Free radicals also activate the melanin-producing cells called melanocytes, thereby a dual benefit with a good antioxidant can be achieved and visible rapidly.

Combining with vitamin E & ferulic acid increases the potency of l-ascorbic acid multiple times, making Revitalise C20 the most potent and stable antioxidant serum.

Recommended Skin Type

Suitable for all skin types

  • silicone-free

  • nut-free

  • vegan

  • gluten-free

  • soy-free

  • cruelty-free

  • 4.0-4.5

  • alcohol-free

  • oil-free

Active Ingredient(s)

20% l-ascorbic acid

Supporting ingredients

  • Niacinamide (Vitamin B3)
  • Tocopherol (Vitamin E)
  • Ferulic acid
  • Hyaluronic acid


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

Benefits of l-ascorbic acid (the most active form of vitamin c) are well described in the medical literature:

1) Neutralises Oxidants (free radicals) thereby reducing damage to cell structures (collagen, elastin, hyaluronic acid etc.) and function

2) Decreases irregular melanin production (reducing dull & uneven tone skin).

3) Increases collagen synthesis.

4) Anti-inflammatory (acne type conditions).

5) Enhances sun protection (UV rays produce free radicals in the skin).

Tips & Suggestions

  • In the morning apply SPF to increase sun protection after using Revitalise C20; only if going to be outside (SPF of no benefit indoors away from a window; unnecessary chemical application).
  • Due to the high concentration of ferulic (more than other similar formulations), the colour of the serum is naturally slightly yellow.

CRES Guide To Clinical Skin Care

CRES principle contains four components; Cleanse, Revitalise, Exfoliate, Stimulate. Your skincare products or cosmetics should be assigned these four tasks. Harley Street Formulations only provides the essential active ingredients at concentrations well above clinical levels for efficacy. Formulations are kept with as few ingredients as possible without the need for unnecessary preservatives; hence, we are continually making fresh new batches.



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.


  • Will irritate and cause dryness initially
  • Titrate dose as per tolerance
  • For external use only
  • Discontinue use if redness or irritation occurs
  • Avoid contact with eyes
  • Keep out of reach of children.

6 reviews for REVITALISE C20

  1. Sarah B

    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.

  2. Mary J

    Mary J.

    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.

  3. Afifa Amer

    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.

  4. Kristina Gumbryte (verified owner)

    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. Shauna

    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

  6. D (verified owner)

    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.

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