SNAP-8

Needle-free line smoothing, the topical peptide that relaxes expression lines.

Needle-free line softening, relaxes the SNARE signaling behind expression wrinkles
An elongated Argireline built to reach the same target, topically
Pairs with Matrixyl to cover both dynamic and static lines

Studied for

Expression linesNeedle-free topical

≥99% purity HPLC-tested Aesthetic & Cosmetic

$36per vial

Free shipping over $200 · ships from the USA

Why researchers choose it

SNAP-8 is a longer version of Argireline that eases the nerve signaling behind muscle contractions right at the skin's surface. In cosmetic research that shows up as softer expression lines on the forehead and around the eyes, topical, needle-free, and much milder than injected Botox.

Reconstitution reference concentration only, not dosing

Set the vial strength and how much bacteriostatic water you draw into it. This returns the resulting concentration for lab handling. It is a dilution reference, not a dosing recommendation.

Vial strength Bacteriostatic water added mL

—mg / mL

Each 0.01 mL — one unit on a U-100 syringe — holds —

Syringe draw	Volume	Amount in that volume

Most compounds reconstitute with bacteriostatic water; a few acid-loving peptides use acetic acid instead. How much to draw, and how many vials a cycle needs, live in the Complete Peptide Guide, not here.

How much, and how many vials for a full cycle?

Protocol and cycle-length questions get answered in the Complete Peptide Guide, not here. These listings carry no dosing.

This compound is supplied for laboratory research use only and is not for human or veterinary consumption. The research summarized here describes published third-party findings, not outcomes from Limitless Peptides, and is not dosing guidance or medical advice. These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease.

How to verify what you received

Every batch we list is third-party HPLC-tested to ≥99% purity. When your vial arrives, these are the handling and quality-control checks a researcher runs before use.

Appearance
A uniform white to off-white lyophilized cake or powder with a consistent fill. Copper peptides carry a characteristic blue tint.
Purity documentation
Our material is third-party HPLC-verified to ≥99% purity and identity before it is listed.
Sealed packaging
An intact flip-top seal and rubber stopper, with the compound and batch clearly labeled.
Clean reconstitution
Dissolves into a clear, particulate-free solution once bacteriostatic water is added.

Commonly studied alongside

GHK-Cu(100 mg)

Firmer skin and faster healing, the copper peptide behind 4,000+ repair genes.

$57

What the research reports 5 citations

Acetyl octapeptide-3 is an elongated version of Argireline, built for the same target with a longer chain.researchdosing
Reduces formation of the SNARE complex needed for muscle-contraction signaling at the skin's surface, softening dynamic expression lines.PubMed
Topical with minimal systemic absorption; a cosmetic topical, not a neuromodulator injection.peptidedosages
Targets dynamic movement lines and is commonly paired with Matrixyl, which builds collagen for static lines.researchdosing
Effects build over weeks and reverse if use stops, and they are not comparable in magnitude to injectable Botox.researchdosing

Compound reference physicochemical facts

Class: Cosmetic peptide
Molecular formula: C₄₁H₇₀N₁₆O₁₆S
Molecular weight: 1075.2 g/mol
CAS number: 868844-74-0
Storage: Lyophilized −20 °C; reconstituted 2–8 °C, kept from light
Source: PubChem CID 76283482

SNAP-8$36