In the world of scientific cosmetics, few active ingredients have revolutionized the anti-aging approach as much as peptides. Chains of amino acids with targeted properties, they act as true biological messengers for the skin — stimulating collagen synthesis, repairing the skin barrier, and densifying the dermis. At Maison Sahéo, they are at the heart of our care philosophy.
What is a peptide in skincare?
A peptide is a short chain of amino acids, the building blocks of proteins. When applied to the skin, they send signals to skin cells to trigger specific regeneration mechanisms. Unlike large molecules, their compact structure allows them to effectively penetrate the superficial layers of the epidermis.
A study published in the International Journal of Cosmetic Science (2009) confirms their key role in preventing skin aging and stimulating dermal fibroblasts.
The different types of peptides for the skin
1. Signal peptides: stimulate collagen
They stimulate the production of collagen, elastin, and hyaluronic acid. The most well-known is Matrixyl (palmitoyl pentapeptide-4), whose effectiveness on collagen synthesis has been documented in several clinical studies.
→ Ideal for: firmness, density, preventive anti-aging
2. Neurotransmitter-inhibiting peptides
Nicknamed "botox-like," they reduce the muscle contractions responsible for expression lines. Argireline (acetyl hexapeptide-3) is the most studied in this category. Research published in the International Journal of Cosmetic Science shows a visible reduction in expression lines after regular topical application.
→ Ideal for: forehead lines, crow's feet
3. Carrier peptides
They transport essential trace elements to the cells. GHK-Cu (copper tripeptide) is the most studied for its regenerative properties. A study published in the International Journal of Molecular Sciences (2018) highlights its protective and regenerative actions on skin genes.
→ Ideal for: damaged skin, scars, radiance
4. Silk peptides (fibroin)
Derived from natural silk, they form a protective film on the skin, smooth the skin texture, and provide an immediate tightening effect. Their film-forming and regenerative properties are documented in dermatological literature.
→ Ideal for: lifting effect, refined texture, radiance
Peptides at Maison Sahéo
We have selected formulas with a high concentration of active peptides, validated by dermatological research:
How to integrate peptides into your skincare routine?
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Morning and/or evening — peptides are stable and well tolerated
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After cleansing, before moisturizer
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Compatible with: hyaluronic acid, niacinamide, PDRN
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Avoid mixing directly with: AHA/BHA at very acidic pH
The Maison Sahéo vision
Peptides are not a trend — they are a scientific evolution in skincare. Precise, well tolerated, and with documented benefits, they naturally integrate into a demanding routine. At Maison Sahéo, each peptide formula is designed to work in synergy with other skin regeneration actives.
Take care of your skin with the rigor it deserves.
FAQ — Peptides in skincare
Are peptides effective against wrinkles?
Yes. Signal peptides stimulate the production of collagen and elastin, gradually reducing deep wrinkles. Neurotransmitter-inhibiting peptides act on expression lines by reducing muscle contractions. Both types are well documented in dermatological literature.
Can peptides be used with other actives?
Yes. Peptides are compatible with most actives: hyaluronic acid, niacinamide, PDRN, low-concentration retinoids. Avoid mixing them directly with very acidic pH AHA/BHA, which can alter their structure.
What is the difference between signal peptides and silk peptides?
Signal peptides act deeply by stimulating fibroblasts to produce collagen and elastin. Silk peptides (fibroin) act on the surface by forming a protective film that smooths the skin texture and provides an immediate tightening effect. Both are complementary.
Are peptides suitable for all skin types?
Yes. Peptides are generally well tolerated by all skin types, including sensitive skin. They do not cause irritation or photosensitization, making them usable morning and evening.
How long does it take to see the effects of peptides?
The tightening effects of silk peptides are visible from the first application. For effects on collagen and firmness, expect 4 to 8 weeks of regular use for visible and lasting results.
Peptides in Skincare: Complete Guide for Regenerated Skin
In the world of scientific cosmetics, few active ingredients have revolutionized the anti-aging approach as much as peptides. Chains of amino acids with targeted properties, they act as true biological messengers for the skin — stimulating collagen synthesis, repairing the skin barrier, and densifying the dermis. At Maison Sahéo, they are at the heart of our care philosophy.
What is a peptide in skincare?
A peptide is a short chain of amino acids, the building blocks of proteins. When applied to the skin, they send signals to skin cells to trigger specific regeneration mechanisms. Unlike large molecules, their compact structure allows them to effectively penetrate the superficial layers of the epidermis.
A study published in the International Journal of Cosmetic Science (2009) confirms their key role in preventing skin aging and stimulating dermal fibroblasts.
The different types of peptides for the skin
1. Signal peptides: stimulate collagen
They stimulate the production of collagen, elastin, and hyaluronic acid. The most well-known is Matrixyl (palmitoyl pentapeptide-4), whose effectiveness on collagen synthesis has been documented in several clinical studies.
→ Ideal for: firmness, density, preventive anti-aging
2. Neurotransmitter-inhibiting peptides
Nicknamed "botox-like," they reduce the muscle contractions responsible for expression lines. Argireline (acetyl hexapeptide-3) is the most studied in this category. Research published in the International Journal of Cosmetic Science shows a visible reduction in expression lines after regular topical application.
→ Ideal for: forehead lines, crow's feet
3. Carrier peptides
They transport essential trace elements to the cells. GHK-Cu (copper tripeptide) is the most studied for its regenerative properties. A study published in the International Journal of Molecular Sciences (2018) highlights its protective and regenerative actions on skin genes.
→ Ideal for: damaged skin, scars, radiance
4. Silk peptides (fibroin)
Derived from natural silk, they form a protective film on the skin, smooth the skin texture, and provide an immediate tightening effect. Their film-forming and regenerative properties are documented in dermatological literature.
→ Ideal for: lifting effect, refined texture, radiance
Peptides at Maison Sahéo
We have selected formulas with a high concentration of active peptides, validated by dermatological research:
How to integrate peptides into your skincare routine?
The Maison Sahéo vision
Peptides are not a trend — they are a scientific evolution in skincare. Precise, well tolerated, and with documented benefits, they naturally integrate into a demanding routine. At Maison Sahéo, each peptide formula is designed to work in synergy with other skin regeneration actives.
FAQ — Peptides in skincare
Are peptides effective against wrinkles?
Yes. Signal peptides stimulate the production of collagen and elastin, gradually reducing deep wrinkles. Neurotransmitter-inhibiting peptides act on expression lines by reducing muscle contractions. Both types are well documented in dermatological literature.
Can peptides be used with other actives?
Yes. Peptides are compatible with most actives: hyaluronic acid, niacinamide, PDRN, low-concentration retinoids. Avoid mixing them directly with very acidic pH AHA/BHA, which can alter their structure.
What is the difference between signal peptides and silk peptides?
Signal peptides act deeply by stimulating fibroblasts to produce collagen and elastin. Silk peptides (fibroin) act on the surface by forming a protective film that smooths the skin texture and provides an immediate tightening effect. Both are complementary.
Are peptides suitable for all skin types?
Yes. Peptides are generally well tolerated by all skin types, including sensitive skin. They do not cause irritation or photosensitization, making them usable morning and evening.
How long does it take to see the effects of peptides?
The tightening effects of silk peptides are visible from the first application. For effects on collagen and firmness, expect 4 to 8 weeks of regular use for visible and lasting results.