Refresh AHA BHA Vitamin C Booster Serum

Description

Actinidia Chinensis Fruit Extract (Kiwi), HYLOCEREUS UNDATUS FRUIT EXTRACT, Sea Buckthorn Water (Sea buckthorn), BUTYLENE GLYCOL, NIACINAMIDE (Vitamin B3), 1,2-HEXANEDIOL, GLYCOLIC ACID (AHA exfoliating acid), BETAINE (Sugar), SODIUM HYDROXIDE, AQUA, PANTHENOL (Pro-vitamin B5), ALLANTOIN (Active ingredient derived from comfrey), HYDROXYETHYLCELLULOSE, GLYCERIN, POLYGLYCERYL-10 MYRISTATE, POLYGLYCERYL-10 LAURATE, SODIUM HYALURONATE (Hyaluronic acid), ADENOSINE (Active), ASCORBYL GLUCOSIDE (Vitamin C derivative), BETAINE SALICYLATE (Derived from salicylic acid), LIMONENE (Regulated allergen), Citrus aurantium bergamia fruit oil (Bergamot essential oil (allergen)), ALPHA-ARBUTIN (Active), LINALOOL (Regulated allergen), MENTHYL LACTATE, Mint extract

My Doctor's Diagnosis: Analysis and Target

Visit Cosrx Refresh AHA BHA Vitamin C Booster Serum is primarily intended for skin with a dull complexion, pigmentation spots, uneven texture, or imperfections. The Cosrx brand offers a formula that targets radiance, sebum regulation, and cell renewal. My expert opinion is that this serum is part of a comprehensive corrective approach, suitable for skin prone to hyperpigmentation, enlarged pores, and the first signs of aging.

Formula Analysis: Key Assets

Three key active ingredients structure the effectiveness of this serum:

• Glycolic acid (AHA) : This chemical exfoliant promotes cell renewal, smooths the skin's surface, and reduces pigmentation spots. Its keratolytic action is known to improve the skin's radiance and texture.
• Ascorbyl glucoside (vitamin C derivative) : A powerful antioxidant, it protects the skin from oxidative stress, stimulates collagen synthesis, and evens out the complexion. Its stabilized form limits the risk of irritation while ensuring effectiveness in promoting radiance.
• Niacinamide (vitamin B3) This multifunctional active ingredient reduces the appearance of pores, regulates sebum production, and acts on dark spots. It strengthens the skin barrier and soothes inflammation.

The synergy of these active ingredients, combined with soothing agents such as panthenol and allantoin, makes this product highly tolerable and visibly effective.

Tips and Application Ritual

I recommend applying this serum in the evening, on clean, dry skin, before your moisturizer. It is compatible with moisturizing active ingredients (hyaluronic acid, panthenol), but it is best to avoid combining it with other powerful exfoliants (retinoids, strong acids) to limit the risk of irritation. Daily sun protection is essential the following day.

My Final Verdict & Safety Opinion

This Cosrx serum stands out for its balanced formula, combining gentle exfoliation, antioxidants, and soothing agents. Its light texture absorbs quickly. The only downside is that the presence of essential oils and allergens (limonene, linalool) may not be suitable for very sensitive skin. In conclusion, it is an excellent choice for reviving radiance and refining skin texture, provided it is well tolerated by the individual.

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