Peptides: The Signal Molecules for Younger Skin
Peptides tell the skin: Build more collagen. Repair the barrier. Reduce inflammation. They act as biochemical messengers and can stimulate the formation of collagen and elastin - both key molecules for skin firmness and elasticity, whose production slows down with age. Certain peptides also support DNA repair in damaged skin cells. Growth factors are a particularly potent subgroup.
The ZO Skin Health Growth Factor Serum and the Growth Factor Eye Serum rely on a combination of growth factors and peptides for anti-aging without retinol. The Colorescience Pep Up Collagen Boost Serum combines peptides with hyaluronic acid for face and neck.
Dr. Niels Freitag particularly recommends peptides to clients who cannot or do not want to use retinol. In our beauty salon in Cologne, we often use them as a supplement to retinol - peptides in the morning (building), retinol in the evening (renewing).
Related Categories: Peptides complement retinol, hyaluronic acid, and ceramides without overwhelming them. In eye care, peptides can help firm the delicate skin around the eyes.

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Frequently Asked Questions About Peptides
What is the difference between peptides and growth factors?
Growth factors are a particularly potent subgroup of peptides. All growth factors are peptides, but not all peptides are growth factors. Growth factors send stronger regeneration signals to the skin cells.
Can peptides replace retinol?
Not entirely. Retinol actively accelerates skin renewal. Peptides stimulate collagen production. Different mechanisms, both valuable. The combination delivers the best results. For those intolerant to retinol, peptides are the best alternative.
What are copper peptides?
Copper peptides (Copper Tripeptide-1) are peptides bound to a copper ion. The copper enhances the skin-repairing effect. The iS Clinical Copper Firming Mist and several ZO Skin Health products use this active ingredient.
Use peptides morning or evening?
Both are possible. Peptides are not UV-sensitive. Many customers use them in the morning (building) and retinol in the evening (renewing). Peptides and retinol in the same step are also possible.
What age group are peptides suitable for?
From your mid-20s as a preventative measure, from 30+ as an active anti-aging component. Peptides have no irritating potential. The sooner you start with collagen stimulation, the better.

























