I have written about peptides before on this blog. But I want to give you the complete version — the one that explains not just what peptides are but which specific peptides appear in which products, what each one does, and exactly how to use them together for maximum results.
If you haven't read the introductory post yet, start there first:
What the hell are peptides — and why should you actually care? →
Back? Good. Now let's go deeper.
Why peptides are different from every other anti-aging ingredient
Most anti-aging ingredients work by forcing or stripping. Retinol forces accelerated cell turnover. Glycolic acid strips dead skin cells. Benzoyl peroxide kills bacteria. These are blunt instruments — effective but often accompanied by irritation, downtime, or adjustment periods that many clients cannot tolerate.
Peptides work by communicating. They send precise molecular messages to your skin cells — messages the cells already understand because they speak the same language. No forcing. No stripping. Just targeted biological signaling that tells your skin to do what it already knows how to do, but may have slowed down doing as you age.
This is why peptides are safe for virtually every skin type — including pregnant clients, sensitive skin, and rosacea-prone clients who cannot tolerate retinoids or acids. You are working with the skin's own systems rather than overriding them.
The peptide categories — and what each one does
- Signal peptides tell fibroblasts to produce more collagen, elastin, and other structural proteins
- Neurotransmitter-inhibiting peptides relax facial muscle micro-contractions that form expression lines
- Carrier peptides deliver trace minerals like copper that are required for collagen organization
- Structural peptides mimic or support the skin's own proteins to improve firmness and laxity
Here is every significant peptide across the products I carry — mapped to the product you will find it in.
Matrixyl — Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7
The original gold-standard peptide complex. Multiple peer-reviewed clinical trials showing measurable increases in collagen production. The Tetrapeptide-7 component also reduces the inflammatory signals that break collagen down — so it stimulates collagen AND protects it simultaneously.
Where to find it at jazskin.com:
- Face Reality Antioxidant Peptide Eye Gel →
- Face Reality Antioxidant Peptide Face Serum →
- Lira Clinical BIO Hydra Infusion →
Matrixyl Synthe'6 — Palmitoyl Tripeptide-38
The upgraded Matrixyl. Stimulates six components of the skin matrix simultaneously — collagen I, III, and IV, fibronectin, hyaluronic acid, and laminin. If Matrixyl is the foundation, Synthe'6 is the whole building.
Where to find it:
- Face Reality Retinol Peptide Serum →
- Face Reality Cran Peptide Moisturizer →
- Lira Clinical BIO Lift Creme →
Argireline — Acetyl Hexapeptide-8
Inhibits the neurotransmitter release that causes facial muscle micro-contractions — softening crow's feet, forehead lines, and expression wrinkles with consistent use. Often called topical Botox in popular media. Results are subtle and cumulative — nothing like an injectable, but real and measurable over weeks of consistent use.
Where to find it:
Syn-Ake — Dipeptide Diaminobutyroyl Benzylamide Diacetate
Inspired by temple viper venom — produces a subtle relaxation of facial muscle contractions through a different mechanism than Argireline. Zero toxicity at cosmetic concentrations. The venom story is real and the science is legitimate.
The Lira Clinical BIO Lift Creme combines both Argireline AND Syn-Ake alongside four other peptides — addressing expression lines through two completely different mechanisms at the same time.
Where to find it:
Copper Lysinate/Prolinate
Bioavailable copper peptide. Copper is required by the enzyme that cross-links collagen and elastin fibers for structural strength. Without adequate copper, newly synthesized collagen cannot be properly organized. Also accelerates wound healing and has natural antimicrobial properties.
Where to find it:
N-Prolyl Palmitoyl Tripeptide-56 Acetate
A next-generation peptide targeting skin laxity — the loss of facial definition and firmness that makes skin look older. Supports production of structural proteins that address sagging rather than just stimulating collagen. Rarely found outside professional-grade formulations.
Where to find it:
Trifluoroacetyl Tripeptide-2
Addresses skin laxity and sagging by supporting key structural proteins. Works on the loss of facial definition that collagen-stimulating peptides alone cannot fully correct.
Where to find it:
Palmitoyl Tripeptide-5
Triggers TGF-beta — a growth factor that stimulates collagen production through a different pathway than Matrixyl. Adds a third collagen-stimulating mechanism to formulas that contain it.
Where to find it:
Palmitoyl Tripeptide-8
An anti-inflammatory peptide that reduces the skin's inflammatory response without suppressing immune function. Used specifically in spot treatments to calm while the active ingredient clears.
Where to find it:
Acetyl Tetrapeptide-5
Reduces puffiness and water retention around the eye area. Specifically targets microcirculation and lymphatic drainage issues that cause under-eye puffiness — a mechanism different from other anti-aging peptides.
Where to find it:
Lira Clinical Healing Peptide Delivery System — Myristoyl Pentapeptide-17, Nonapeptide-3 + Hexapeptide-5
Three peptides formulated specifically to maintain barrier integrity during exfoliation — increasing intercellular lipids and barrier protection while acids work. This is the ingredient system that makes the PRO Anti-Aging Pads a peel-and-heal formula rather than a peel-and-pray one.
Where to find it:
Chrysin + N-Hydroxysuccinimide
Not traditional peptides but worth including here. This pair specifically targets the hemoglobin breakdown that causes dark bluish under-eye circles. Chrysin prevents hemoglobin from breaking down into the pigments that create darkness. N-Hydroxysuccinimide helps disperse existing deposits. Together they address the vascular component of dark circles that caffeine and vitamin K alone cannot fully correct.
Where to find it:
How to build a peptide routine
Morning: apply a peptide serum or peptide moisturizer. Peptides are non-photosensitizing and pair beautifully with vitamin C and SPF — the ideal morning combination.
Evening: pair peptides with retinoids for the most comprehensive anti-aging protocol available. Retinol forces accelerated cell turnover — it is the accelerator. Peptides signal structural repair and collagen production — they are the architect. The two mechanisms complement each other perfectly.
Peptides are safe every day, twice a day, indefinitely. There is no adjustment period, no purge, no sensitivity. They simply keep working the longer you use them — which is why I consider them the most sustainable anti-aging investment in professional skincare.
The one thing I want you to remember
Peptide marketing has made this word mean almost nothing on its own. A product listing one peptide at trace concentration in the 30th position on the ingredient list is not meaningfully a peptide formula. What matters is which peptides, at what concentration, in what delivery system.
The Face Reality and Lira Clinical formulas I carry have earned their place on my shelf by meeting that standard. The peptide concentrations are real. The formulation science is real. The results I have seen on my clients' skin are real.
If you want to know which peptide products are right for your skin specifically, text me at (818) 669-0333.
Jasmine Brinton
Esthetician | Skin Care Expert | Author & Researcher
Jasmine Skin Care + Lash Studio | Valley Village, CA
jazskin.com | (818) 669-0333
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