Prof. Dr. Steinkraus 
AHA Serum

The AHA Serum contains 7% glycolic acid (AHA), 5% gluconolactone (PHA) and 3% succinic acid (dicarboxylic acid) – an effective and balanced blend of mild, exfoliating acids. It is applied in the morning or evening after cleansing and before all other skincare steps and is suitable for all skin types. The serum has a keratolytic effect, which means it gently loosens dead skin cells, leaving the skin smoother. At the same time, it stimulates cell regeneration and collagen synthesis, refines the skin structure, moisturizes, and improves firmness and texture for a radiant complexion.

- Contains a balanced combination of mild acids.
- Suitable for all skin types.
- Has a keratolytic effect: gently loosens dead skin cells for a smoother surface.
- Stimulates cell regeneration and collagen synthesis.
- Refines skin texture and complexion.
- Moisturizes and improves skin firmness.
- Ensures an even, radiant complexion.
- Reduces visible signs of aging and strengthens the skin barrier.

Apply the serum after cleansing and before any further skincare steps. Initially, it is recommended to use it in the evening, for example, twice a week. If well tolerated, the serum can also be used daily. Effective sun protection is particularly important during use.

Important note: Avoid direct sunlight; alternatively, use protective clothing, a hat, or sunscreen. Do not apply the serum to the eye area or mucous membranes. If unusual redness or skin irritation occurs, discontinue usage and consult a dermatologist if necessary.