(18) AHA Serum

A gesture of precision that elevates the skin to its best version. AHA Serum by Prof. Dr. Steinkraus combines advanced chemical exfoliation with a delicate architecture of support and comfort to refine texture, activate cell renewal, and reveal an even and luminous complexion. Its synergy of AHA, PHA, and succinic acid works with clinical elegance, offering visible results without compromising tolerance.

Results and Benefits

• Intelligent renewal: keratolytic effect that gently sheds dead cells, smooths the relief, and improves tone uniformity.
• Refined texture: visibly smoother pores and skin grain; homogeneous and controlled glow.
• Positive skin stimulation: supports cell regeneration and collagen synthesis for firmness and elasticity.
• Comfort and hydration: moisturizing and soothing matrix that conditions the barrier and provides a feeling of full skin.
• High tolerance: precise formulation for all skin types, including sensitive.

Science and Key Actives

• Glycolic Acid (7% | AHA): effectively and precisely renews the stratum corneum, smoothing microtextures and enhancing luminosity.
• Gluconolactone (5% | PHA): gentle exfoliant with moisturizing profile, ideal for sensitive skin; provides uniformity without irritation.
• Succinic Acid (3%): modulatory dicarboxylic acid that promotes renewal and helps maintain a balanced skin environment.
• Comfort complex: allantoin and moisturizers (pentylene glycol, propanediol) that calm, condition, and support the barrier.
• Antioxidant support: tocopherol (vitamin E) and cyanocobalamin (B12) that accompany renewal with antioxidant sensibility.

How to Use

• Application: after cleansing and/or toning, before serums and creams. Start at night, 2 times a week.
• Progression: if the skin tolerates it, increase frequency to daily use. Avoid the eye contour and mucous membranes.
• Essential photoprotection: during use, avoid direct exposure and apply broad-spectrum SPF.
• Skin signals: in case of unusual redness or irritation, discontinue and consult dermatology if necessary.

Ingredients (INCI)

Aqua (Water), Glycolic Acid, Gluconolactone, Pentylene Glycol, Succinic Acid, Sodium Hydroxide, Arginine, Propanediol, Phenoxyethanol, Allantoin, Xanthan Gum, Ethylhexylglycerin, Sodium Lauroyl Sarcosinate, Cyanocobalamin, Tocopherol.

Technical and Tolerance Details

• Conditioned barrier: the combination of moisturizers and allantoin contributes to a comfortable and balanced post-peeling.
• Precise architecture: acids in harmonized proportions (AHA + PHA + succinic) for efficacy with skin respect.
• Formulation philosophy: unisex, vegan; free from synthetic fragrances, silicones, microplastics, acrylates, and parabens.

Recommended Synergies

• After the serum: seal with high-performance hydration (e.g., Hyaluron Serum) and a Face Care cream suitable for your skin.
• Daytime routine: incorporate photoprotection (Sun Protect SPF50+) as an essential step.
• Alternate days: combine with Niacin Serum 20% on nights without AHA to reinforce barrier and uniformity of tone.