Skin Atlas
Definition & Application
An archive of mapped terms.
Classified within the context of modern skincare.
Peptides: Effect, Types, and Application in Skincare
Peptides are short amino acid chains that act as signaling molecules in the skin and can specifically stimulate biological processes such as collagen formation, moisture regulation, and tissue repair. In modern skincare, they are considered one of the most versatile and well-tolerated classes of active ingredients.
TABLE OF CONTENTS
What are Peptides?
Peptides consist of two or more linked amino acids – the basic building blocks of proteins like collagen and elastin. In the skin, they function as signaling molecules: they communicate with skin cells and control biological processes such as tissue repair, moisture regulation, and protective functions, as described by Eucerin.
In modern cosmetics, various peptide classes are specifically used because they act directly at the skin cell level and are well-tolerated – without aggressive interventions in the skin structure.
How do Peptides Affect the Skin?
Peptides penetrate the upper layers of the skin and send specific signals to fibroblasts and other skin cells. Depending on the peptide type, they can promote the synthesis of structural proteins, slow down degradation processes, or stabilize moisture balance.
Only if peptides overcome the skin barrier can they unleash their potential – molecular size, stability, and product formulation are crucial.
Peptide Classes and Their Effects
Peptides are considered particularly well-tolerated active ingredients in anti-aging care. Their strengths by class:
- Signal Peptides: Stimulate fibroblasts to produce collagen and elastin – particularly relevant for mature skin.
- Transport Peptides: Deliver minerals like copper deep into the skin, where they support cell and tissue repair. Related: Copper Peptides.
- Neuro-Peptides: Influence facial muscles and can visibly reduce expression lines.
- Enzyme-Inhibiting Peptides: Slow down the breakdown of structural proteins, thus extending the duration of action of newly formed collagen fibers.
Application and Tolerability
Peptides are found in serums, creams, and essences and can be applied morning and evening. They are designed for long-term use – visible results typically appear after several weeks of consistent application.
Since peptides do not irritate the skin, they can be used continuously without skin acclimatization. They are also suitable for sensitive skin types. NATURFACTOR®'s Porcelain Skin Serum contains selected peptide chains that specifically support skin structure and contribute to regeneration.
Combination with Other Active Ingredients
Peptides combine well with hyaluronic acid, niacinamide, and antioxidants, complementing their effects without stressing the skin. Caution is advised when used simultaneously with strongly acidic active ingredients like AHA acids at a low pH, as this can impair the stability of some peptides.
When used with retinol in separate care steps, peptides can effectively support skin regeneration after retinol use.
Who are Peptides Suitable For?
Peptides are generally suitable for all skin types. Particularly beneficial for:
- Mature skin with visible signs of aging
- Skin in need of regeneration or stressed by environmental factors
- Sensitive skin that cannot tolerate stronger active ingredients like retinol
- Younger skin as preventive care from the late twenties
Frequently Asked Questions about Peptides
What do peptides specifically do in skincare?
Peptides send signals to skin cells and can thus stimulate processes such as collagen formation, moisture regulation, and tissue repair. Their effect is gentle, but visible with regular use.
Are peptides also suitable for sensitive skin?
Yes. Peptides are considered particularly well-tolerated active ingredients and are generally well-tolerated even by sensitive or reactive skin – without irritation or skin acclimatization.
When should one start using peptides in skincare?
Peptides can be used preventively from the late twenties. For mature skin with first signs of aging, they are particularly effective – the earlier the application begins, the better for long-term skin structure.
Conclusion
Peptides are a versatile class of active ingredients that work gently and effectively on the skin. They can promote collagen formation, strengthen the skin barrier, and support regeneration – well-tolerated for almost every skin type. In high-quality formulations like NATURFACTOR®'s Porcelain Skin Serum, peptides contribute to a firmer, more refined complexion.
References
- Eucerin Germany (2025): Peptides – Effect on aging skin
