New Radiance Booster – 10% Vitamin C View larger

Your Stay-At-Home Skincare RoutineYour Stay-At-Home Skincare Routine

Unlock a more vibrant, illuminated complexion.

  1. Apply either in the morning or the evening. In your first week, we advise you to use the booster only in the evening to allow time for the skin to adjust.

  2. After one week of use, simply add 2-3 drops to any skincare product. For optimal results, add to the Recovery Serum prior to application.

  3. Manage the Vitamin C in the formula and combat your skin’s sensitivity by always using UVA/UVB sun protection during the day.


A flash of positive energy and freshness, this award-winning booster envelops the skin in the goodness of Vitamin C, toning the skin, reversing photo aging and making the complexion look younger and more vibrant. The key ingredient, Stay-C® 50,registered as a quasi-drug in Japan, has been clinically shown to reverse the signs of aging and brighten the skin. Like the other Age Intelligence Boosters, it has been formulated to mix into anything we can call skincare.

Winner of The Best Skin Brightener of the Year, Marie Claire Beauty Awards 2019

More details

Skin type: Normal Dry Very dry Combination / Oily Sensitive


100.00 USD tax incl.


20ml glass bottle with pipette

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You're only 250.00 USD away from the free 4-Piece Skin Anti-Stress Set.

Free shipping to United States in just 3-5 business days direct from Switzerland.

Expected delivery: Jun 18-22

  • Makes the skin more radiant and vibrant
  • Brightens and illuminates
  • Provides antioxidant defence

Take our Skin Analysis to discover the perfect solution for you!


  • Results in fresher-looking, vibrant skin.
  • Prolonged use significantly improves the skin’s firmness.
  • Reverses photo-aging at the cellular level while providing a strong anti-oxidant defence.
  • Paraben-free - Allergen-Free - Without Phenoxyethanol - Parfum-Free - Colour-free - Vegan - Cruelty-free

Full ingredients list >>




Water/Eau, Sodium Ascorbyl Phosphate, Glycerin, Butylene Glycol, Ascorbic Acid, Citric Acid, 1,2-Hexanediol, Caprylyl Glycol, PEG-40 Hydrogenated Castor Oil, Xanthan Gum, Disodium EDTA.

Our formulations will be updated from time to time as part of our commitment to innovation, or due to regulatory changes. As such, the ingredient list above may vary from that on the box depending on time and region of purchase.

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How to use

Radiance Booster can be applied am and/or pm as needed, mixed in the palm of the hand with the Recovery Serum to maximize results, or directly in your usual cream for a boost. During the first week, we advise limiting the use to the pm, so as to allow skin to better adapt. 2-3 drops are enough, more can be used if needed. The use of an adapted UV protection during the day is imperative to better protect the skin (and the vitamin C in the formula!).


STAY-C® 50*: This molecule, obtained by binding pure L-ascorbic acid and Ascorbyl Sodium Phosphate, is a very stable form of vitamin C. Registered as a quasi-drug in Japan, it meets the needs of most skin. Clinical tests on a 3D skin sample and in vivo studies have fully demonstrated its effective brightening effect on the skin.


In topical use, vitamin C is of real benefit to the skin. Recognized as an antioxidant, it illuminates the complexion and reduces the signs of age. Vitamin C tones the skin when used over a prolonged period. Water soluble in its pure form, it is more stable in the form of a powder, but then the pleasure of the cosmetic ritual is lessened. Here we offer a formula combining pure L-ascorbic acid – the most active, yet least stable form of vitamin C – together with an ascorbic acid salt form, which greatly contributes to better stability in the very high concentration.

* STAY-C® 50 is a registered brand of DSM Nutritional Products AG (DSM Nutritional Products SA /DSM Nutritional Products Ltd), Switzerland. Stated in vivo studies carried out by DSM with a panel of 40 volunteers aged 35-45 years old.

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