Peptides in cosmetics: The secret ally for younger, more resilient skin
Peptides are now at the heart of many cosmetic formulations. But what exactly are they? How do they work on the skin? How can they benefit your skincare routine? Let's take a closer look at this ingredient with multiple virtues.
What is a peptide?
Peptides are short chains of amino acids, the essential building blocks of proteins such as collagen, elastin, and keratin. These proteins play a crucial role in the structure and integrity of the skin, contributing to its firm, smooth, and elastic appearance.
With age, the natural production of these proteins decreases, leading to sagging skin, loss of elasticity, and the appearance of wrinkles. Peptides incorporated into cosmetic products can help stimulate these biological processes and slow down the visible signs of skin aging.
The benefits of peptides for the skin
1. Stimulation of collagen and elastin
Signal peptides act as cellular messengers, encouraging the production of collagen and elastin, which are essential for skin firmness and elasticity, while enzymatic peptides They prevent the degradation of collagen and other structural proteins in the skin.
2. Strengthening the skin barrier
Certain peptides, called transporter peptides, promote the transport and absorption of key nutrients such as copper and magnesium, thereby improving skin regeneration and resistance to external aggressions.
3. Relaxing effect on expression lines
Neurotransmitter inhibitor peptides act as mild muscle relaxants, limiting the contractions responsible for expression lines. They are sometimes compared to gentle alternatives to botulinum toxin injections.
4. Anti-inflammatory and healing action
Some peptides have anti-inflammatory properties that help calm redness and irritation while stimulating skin healing.
5. Hydration and protection
Peptides strengthen the skin's hydrolipidic barrier. By stimulating hyaluronic acid production, they preserve its natural moisture and limit premature dehydration.
How can peptides be incorporated into your skincare routine?
- Morning and evening : Opt for a peptide serum before applying your moisturizer.
- Combining peptides with other active ingredients They work well with antioxidants (vitamin C, niacinamide) and moisturizers (hyaluronic acid) to maximize their effectiveness.
- Prioritize stable formulations Look for skincare products formulated with encapsulated peptides to ensure their penetration and effectiveness.
Are there any contraindications for peptides?
Peptides are generally well tolerated by all skin types, including the most sensitive. However, to maximize their effectiveness, it is advisable to use them as part of a well-balanced routine and avoid combining them with overly aggressive exfoliating acids that could alter their stability.
