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For research use only. Not for human or veterinary use. Not a drug, food, or dietary supplement.
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Skin · Dosing reference

Argireline dosage

What the human evidence does and does not show, how long studies ran, and the arithmetic for working with vials.

Not approved — research use onlyBLimited human dataNone established
Full research pageCycle-length evidenceComparePrefer Amiravo on Google
Regulatory status
Not approved — research use only
Human amounts
None established in humans
Route studied
—
Frequency
Not established
Half-life
Not located in the sources reviewed. Related work on cosmetic peptides reports rapid degradation in skin extracts, but no half-life for this peptide in humans was identified 11.
Evidence grade
Grade B · Limited human data
Vial sizes on the market
Not recorded
Other forms seen
—

What Argireline is

Argireline is the trade name of acetyl hexapeptide-8, a cosmetic ingredient modelled on part of the SNAP-25 protein and marketed as a topical alternative to botulinum toxin; the small human studies located are mixed, including a double-blind split-face study that found no significant difference from the vehicle, and the proposed neuromuscular mechanism has not been demonstrated for it.

Acetyl hexapeptide-8 is a six-residue peptide, Ac-Glu-Glu-Met-Gln-Arg-Arg-NH2, whose sequence corresponds to part of the N-terminal region of SNAP-25 8. The commercial rationale is that it competes within the SNARE complex that mediates vesicular acetylcholine release at the neuromuscular junction, so that topical application reduces contraction of the mimetic muscles producing expression lines 2,6. Evidential… How it works →

Key evidence

  • Henseler, GMS Interdiscip Plast Reconstr Surg DGPW · 2023 · Humans (19 women)
    Wrinkle scores fell slightly on both sides with no statistically significant difference between the side receiving the peptide and the side receiving the serum alone; the author concluded the peptide's effect was not demonstrated. 3
  • Aruan et al., J Clin Aesthet Dermatol · 2023 · Humans (21 Indonesian women aged 26 to 55 with crow's feet)
    Improvement was reported in several subjects in both peptide arms; the authors judged the palmitoyl pentapeptide-4 arm to show more change than acetyl hexapeptide-3 and placebo, and described the study as preliminary. 4
  • Acuner et al., Aesthetic Plast Surg · 2026 · Animals (40 female Wistar rats, McFarlane flap model)
    The peptide alone produced a collagen type I/III profile indistinguishable from saline control and no detectable tissue-level effect; flap survival did not differ between groups. 5
All studies on the research page

What the human evidence shows

No approved or established human dose

Human studies of Argireline are listed below by design, population and duration. None was designed or powered to establish an amount, and Amiravo does not reproduce their amounts for a compound approved nowhere.

  • Double-blind, split-face comparison of a hyaluronic acid serum with and without the peptide, instrument-measured wrinkle scores; Women recruited from a plastic surgery clinic; 19 participants; duration 4 weeks. 3
  • Double-blind randomized three-arm trial (acetyl hexapeptide-3 cream, palmitoyl pentapeptide-4 cream, placebo) with corneometry, tewametry, cutometry, photography and a grading scale; Indonesian women aged 26 to 55 with crow's feet; 21 participants; duration 8 weeks. 4
  • Ex vivo plus clinical study of a multi-ingredient serum (peptide combined with dipeptide diaminobutyroyl benzylamide diacetate and gluconolactone), so no effect is attributable to the peptide alone; Not isolated to the peptide; duration Not isolated to the peptide. 12

How long did human studies run?

No human study durations are recorded for Argireline.

Cycle-length evidence for Argireline

Supplies and handling

  • Lyophilized vial
    Sealed vial with the freeze-dried cake. Check the label, lot and the certificate of analysis before opening.
  • Sterile diluent
    The diluent named on the product documentation. Bacteriostatic water contains benzyl alcohol; sterile water does not.
  • Graduated syringes
    Sized to the volume being measured. U-100 insulin syringes are graduated in units where 100 units = 1 mL.
  • Alcohol prep pads
    For wiping vial stoppers before each puncture.
  • Nitrile gloves
    Clean gloves for aseptic handling.
  • Sharps container
    Puncture-resistant container for used needles.
Step-by-step reconstitution guideStorage and transport accessories

Storage

General research-context handling only. Lyophilised peptides of this type are generally kept dry, cool and protected from light, moisture and oxidising conditions, with methionine-containing sequences particularly oxidation-sensitive; aqueous solutions are treated as short-lived. Finished cosmetic formulations follow the manufacturer's own stability data. Defer to supplier documentation for the specific lot.

  • Lyophilized (unmixed) vials: typically stored cold and dry, away from light, as the documentation directs. Many are stable longer frozen.
  • Reconstituted vials: typically refrigerated (about 2–8 °C), protected from light and not frozen.
  • Bacteriostatic water contains benzyl alcohol, which inhibits bacterial growth in multi-use vials; sterile water has no preservative.

Handling mistakes and troubleshooting

Added the wrong volume of diluent
The concentration changes, not the amount of compound in the vial. Recalculate with the volume actually added and relabel the vial.
Shook the vial and it foamed
Let it settle in the refrigerator. Foam is a sign of agitation; some peptides aggregate when shaken. Note it on the label.
The solution is cloudy or has particles
Do not use it. Cloudiness can indicate incomplete dissolution, contamination or degradation. Record the lot and contact the supplier with the certificate of analysis.
The powder cake looks melted or shrunken before reconstitution
This can indicate the vial was exposed to heat or moisture. Record the lot and condition on arrival.
Liquid sprayed back when the needle was removed
Pressure built up in the vial. Withdraw a small volume of air while adding diluent to keep pressure neutral.

Regulatory status

Status
A cosmetic ingredient, not an approved drug. Cosmetic ingredients in the United States are not subject to FDA premarket approval, and acetyl hexapeptide does not appear in any of the three categories of FDA's 503A bulk drug substances list as updated May 14, 2026 9. The Expert Panel for Cosmetic Ingredient Safety concluded in 2025 that acetyl hexapeptide-8 amide raised no safety concern in cosmetics at concentrations up to 0.005% as currently used, and that available data are insufficient to reach that conclusion above that concentration 1.
United States (FDA)
Marketed as a cosmetic ingredient rather than a drug. Cosmetic ingredients in the United States are not subject to FDA premarket approval, and acetyl hexapeptide does not appear in any of the three categories of FDA's 503A bulk drug substances list as updated May 14, 2026 9. Absence from drug databases is therefore expected and says nothing about efficacy.
Sport (WADA)
Not named individually in the sources reviewed; S0 covers substances without governmental approval for human therapeutic use, prohibited at all times 10. Cosmetic status does not by itself place a substance outside the List, since the List is organised by substance rather than product category; athletes should seek a ruling from their anti-doping organisation.

Status varies by country and changes over time. How we describe regulatory status.

Argireline compared with related compounds

CompoundStatusEvidenceHuman amountsHalf-life
ArgirelineNot approved — research use onlyBNone establishedNot located in the sources reviewed. Rel
SNAP-8Not approved — research use only—None established—
AfamelanotideFDA-approvedAFDA labelApproximately 15 hours (apparent, from t
MatrixylNot approved — research use onlyBNone establishedNot located in the sources reviewed. In
GHK-CuNot approved — research use onlyBNone established—
Melanotan INot approved — research use only—None established—

Frequently asked questions

What doses of Argireline have been studied in humans?
None that establish an amount. Argireline is not approved anywhere and the human studies that exist are small and were not designed to find a dose. Amiravo does not publish community or vendor figures.
Is there an established Argireline cycle length?
No. We found no human studies that report treatment duration for Argireline.
How much bacteriostatic water should be added to a Argireline vial?
There is no compound-specific volume. The diluent volume only sets the concentration: concentration = mass in the vial ÷ volume added (for example, 10 mg in 2 mL gives 5 mg/mL). The calculator on this page shows the arithmetic for any combination.
How many units is a given amount on an insulin syringe?
On a U-100 syringe, 100 units = 1 mL. Units for an amount = amount ÷ (concentration per unit). The calculator converts any amount you enter at the concentration you choose; a unit is a volume mark, not an amount of compound.
What is the half-life of Argireline?
Not located in the sources reviewed. Related work on cosmetic peptides reports rapid degradation in skin extracts, but no half-life for this peptide in humans was identified 11.
Is Argireline FDA-approved?
Not approved — research use only. A cosmetic ingredient, not an approved drug. Cosmetic ingredients in the United States are not subject to FDA premarket approval, and acetyl hexapeptide does not appear in any of the three categories of FDA's 503A bulk drug substances list as updated May 14, 2026 9. The Expert Panel for Cosmetic Ingredient Safety concluded in 2025 that acetyl hexapeptide-8 amide raised no safety concern in cosmetics at concentrations up to 0.005% as currently used, and that available data are insufficient to reach that conclusion above that concentration 1.

References

  1. Safety Assessment of Acetyl Hexapeptide-8 Amide as Used in Cosmetics Int J Toxicol. 2025
  2. Acetyl Hexapeptide-8 in Cosmeceuticals - A Review of Skin Permeability and Efficacy Int J Mol Sci. 2025
  3. Investigating the effects of Argireline in a skin serum containing hyaluronic acids on skin surface wrinkles using the Visia Complexion Analysis camera system for objective skin analysis GMS Interdiscip Plast Reconstr Surg DGPW. 2023
  4. Double-blind, Randomized Trial on the Effectiveness of Acetylhexapeptide-3 Cream and Palmitoyl Pentapeptide-4 Cream for Crow's Feet J Clin Aesthet Dermatol. 2023
  5. Effects of Botulinum Toxin Type A and Argireline on Dermal Collagen Remodeling and Skin Biology in a Flap Model Aesthetic Plast Surg. 2026
  6. Acetyl Hexapeptide-8 as a Topical Alternative to Botulinum Toxin: A Review of the Literature J Drugs Dermatol. 2025
  7. Public Interest in Acetyl Hexapeptide-8: Longitudinal Analysis JMIR Dermatol. 2024
  8. Acetyl hexapeptide-3 / Acetyl Hexapeptide-8 (CID 71587772) PubChem. 2026
  9. Bulk Drug Substances Nominated for Use in Compounding Under Section 503A of the Federal Food, Drug, and Cosmetic Act (updated May 14, 2026); no entry for acetyl hexapeptide or argireline in any of the three categories FDA. 2026
  10. International Standard: Prohibited List 2026 World Anti-Doping Agency. 2026
  11. Dermal Stability and In Vitro Skin Permeation of Collagen Pentapeptides (KTTKS and palmitoyl-KTTKS) Biomol Ther (Seoul). 2014
  12. The effect of a serum containing acetyl hexapeptide-8, dipeptide diaminobutyroyl benzylamide diacetate and gluconolactone on skin biomarkers, wrinkles and skin texture: Ex vivo and clinical studies Int J Cosmet Sci. 2026

Last reviewed October 24, 2026 by the Amiravo editorial team. Editorial policy · Report an error