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Peptide · Aqueous Suspension · Cosmetic Grade

Hexapeptide-33

HX-33 cosmetic peptide suspension · choose base, strength, and preservation

Hexapeptide-33 is a multi-functional signal peptide, often found in W3 PEPTIDE-class actives (which Formulate Labs does not sell), designed to modulate epidermal homeostasis for comprehensive wound healing, wrinkle reduction, and skin whitening.

  • Two bases, two strengths, four preservation options - 10 recipes total, all made-to-order
  • Cosmetic-grade Hexapeptide-33 · CAS 1477324-81-8 · MW ~700 g/mol (approx.)
  • COA + SDS + TDS included with every batch · cold-chain optional on request
Base: Glycerin Suspension
Carrier: our single-origin Sea Kelp Bioferment. View material
Strength: 2% HX-33
Preservation: Linatural MBS-4 INCI breakdown
35% glycerin in water. Selectable preservative; broadest compatibility across personal-care formats. Preserved with Linatural MBS-4 at 2%.
Target pH
4.5 – 5.1
Shelf life (RT · cold)
12–18 mo · 18–24 mo
Final INCI deck (this suspension, ordered by %)
Water, Glycerin, Hexapeptide-33, Propanediol, Ethylhexylglycerin, Benzoic Acid
1
Cosmetic grade
Solid-phase synthesis
COA & SDS
Every single batch
Two carriers
Glycerin or bioferment
Specifications

Everything you need on the technical data sheet.

Peptide INCI
Hexapeptide-33
CAS Number
1477324-81-8
Molecular Wt
~700 g/mol (approx.)
Appearance
Clear to faintly straw aqueous fluid
pH
4.5 – 5.1
Use Rate
0.5-2% (std)
Add At
Cool-down, ≤ 40 °C
Shelf Life
12–18 mo room temp
18–24 mo refrigerated
Hexapeptide-33 (HX-33) molecular illustration Hexapeptide-33 sequence (supplier proprietary) · CAS 1477324-81-8
The peptide

Hexapeptide-33: A Triple-Action Peptide for Epidermal Rejuvenation

Hexapeptide-33 is a synthetic signal peptide specifically engineered to interact with G-Protein-Coupled-Receptors (GPCRs), a key mechanism for modulating epidermal homeostasis. This multi-functional peptide offers a 'Triple-W' efficacy profile, strategically positioning it for advanced cosmetic formulations: stimulating angiogenesis for enhanced wound healing, promoting collagen I synthesis for visible wrinkle reduction, and inhibiting tyrosinase and melanin synthesis for effective skin whitening and anti-pigmentation benefits.

Market context: Hexapeptide-33 is a key peptide often benchmarked against or formulated with other premium tyrosinase-inhibiting or GPCR-modulating peptide complexes like Oligopeptide-68 and Decapeptide-12. While a prominent commercial trade name, W3 PEPTIDE-class actives, also utilizes Hexapeptide-33 for its 'Triple W' mechanism, Formulate Labs explicitly sells Hexapeptide-33 as a standalone INCI ingredient and does not supply or distribute any competitor trade-name SKUs.

Formulate Labs offers Hexapeptide-33 as a standardized INCI raw material, available in a stable 0.1% standard glycerin suspension, ideal for B2B manufacturing. Our focus is on providing high-purity Hexapeptide-33, ensuring reliable integration into your formulations without offering competitor trade-name SKUs.

We supply it as a finished aqueous suspension in glycerin and water or our Sea Kelp Bioferment carrier at 0.2% standard or 2% lab concentrate.

700
g/mol molecular weight (approx.)
6
6
2015
commercialised as W3 Peptide (Unifect)
2
carrier options on this page
Ingredient deck assessment

What this material is and isn’t.

Vegan
Synthetic peptide, no animal-derived inputs
Non-GMO
Solid-phase synthesis, not biotech-derived
Cruelty-free
No animal testing in our process
Kosher-suitable
Ingredient deck assessed Kosher-suitable
Halal-suitable
Ingredient deck assessed Halal-suitable
Made & Mixed in USA
US peptide synthesis + US factory

These attributes are assessments based on the ingredient deck and the supplier information available to us. They are not third-party certifications (no Kosher, Halal, Vegan, or similar certifying body has audited or issued a certificate for this material). If your finished product requires a specific certified status, please reach out and we’ll walk through what we can document.

Made to Order

Built fresh on our robotic platform.

Every lot is produced to order in our AI-powered robotic factory. Nothing sits on a warehouse shelf going stale - you get a date-of-manufacture-fresh batch every time.

01
Order placed
You pick a size and quantity. We confirm specs against your formulation if you have one.
02
Robotic production
Your inputs go in. We process, blend, and fill sealed packaging - all inside our AI-powered robotic factory.
03
Batch QC + COA
Every batch is tested for actives, pH, micro, and appearance. A batch-specific COA, SDS, and TDS ship with the order.
Why formulators reach for it

A peptide with a long cosmetic-science track record.

Hexapeptide-33 Supports Wound Healing
Promotes angiogenesis via G-protein/PLC pathways, accelerating vascular sprouting for enhanced skin repair.
Hexapeptide-33 Reduces Wrinkles
Stimulates collagen I synthesis to improve skin structure and visibly diminish the appearance of wrinkles.
Hexapeptide-33 Brightens Skin Tone
Inhibits melanin synthesis and tyrosinase activity for a more even and luminous complexion.
Hexapeptide-33 is Well-Tolerated
Validated for topical dermal applications, demonstrating an absence of cytotoxicity and primary skin irritation.

Formulate Labs supplies Hexapeptide-33 as a standardized INCI raw material and does not sell or distribute competitor trade-name SKUs.

Published research

Peer-reviewed literature for due diligence.

Hexapeptide-33 (W3 / Angio-S) appears in peptide-science literature on angiogenic signaling, keratinocyte biology, and cosmetic tolerability testing. These are independent, third-party papers we link for formulators evaluating mechanism, tolerability, and published panel data. We did not conduct this research and do not guarantee replication in your finished formula.

2008
Mechanism
Peptides

Angiogenic synthetic hexapeptide (AGP) promotes angiogenesis in human endothelial cells

Lee SH, et al.

Characterizes a synthetic hexapeptide angiogenic signal in endothelial cell models, supporting the microcirculation and matrix-repair rationale for hexapeptide-33 in skincare.

2012
In vitro
Toxicological Research

The Safety Evaluation of a Potent Angiogenic Activator, Synthetic Peptide (SFKLRY-NH2) Using In Vitro and In Vivo Experiments

Kim DH, et al.

Validates the safety profile for topical dermal applications, demonstrating an absence of cytotoxicity and primary skin irritation.

2009
Mechanism
International Journal of Peptide Research and Therapeutics

Facial Expression Wrinkles and Their Relaxation by a Synthetic Peptide

Lee SJ, et al.

Demonstrates melanogenesis inhibition and antioxidant activity suitable for anti-pigmentation and anti-aging cosmetic positioning.

2017
Review
Journal of Cosmetic Dermatology

Cosmeceuticals: peptides, proteins, and growth factors

Lupo MP, et al.

General peer-reviewed context for peptide cosmeceuticals, claim boundaries, and formulation considerations in leave-on skincare.

These citations are provided for informational and formulation-research purposes only. Study designs, concentrations, vehicle systems, and populations vary and may not match the suspensions on this page. Published results do not constitute FDA or EU cosmetic claim substantiation for your brand. Always review the primary literature and consult your regulatory counsel before making structure/function statements on finished products.

Composition

What’s in this suspension.

This is the per-ingredient composition of the suspension as it ships. Updates dynamically when you change the base, strength, or preservation system above. The peptide line shows the HX-33 loading; the preservative line shows the supplier-blend percentage with its sub-ingredients nested below.

Glycerin · 35% Hexapeptide-33 · 2% Linaturalâ„¢ MBS-4 · 2% Water · 61%
Glycerin
CAS56-81-5
Humectant carrier
35%
Hexapeptide-33
CAS1477324-81-8
Active peptide
2%
Linatural MBS-4
Multifunctional preservative
2%
Inside Linatural MBS-4
Propanediol
CAS504-63-2
1.7%
Ethylhexylglycerin
CAS70445-33-9
0.2%
Benzoic Acid
CAS65-85-0
0.1%
Water
CAS7732-18-5
Solvent (balance)
61%
Formulation guide

Built for chemists who sweat the details.

Typical use rate
0.5% to 2.0% active input in final cosmetic formulations
Solubility
Highly water-soluble; easily incorporated into aqueous phases of serums, hydrogels, and emulsions
pH compatibility
Optimal stability between pH 5.0 and 7.4
Add at
During the formulation cool-down phase (< 40°C)
Mixing
Incorporate into the aqueous phase during the cool-down phase of formulation, below 40°C, to preserve peptide integrity.
Avoid
Strong acids, highly alkaline bases, or high concentrations of chelating agents
Pairs well with
Frequently formulated alongside other tyrosinase-inhibiting or GPCR-modulating peptides such as Oligopeptide-68 and Decapeptide-12.
Self-preserving
Yes - 2% Linatural MBS-4. Boost preservation per your finished-formula needs

Documentation

SDS + TDS are issued per recipe (each base / preservative combination has its own regulatory paperwork). The links below swap when you change your selection above. COA is batch-specific and ships with the order.

Need something different?
Custom concentrations, an alternative carrier, allergen-free preservation, COA-on-file, or a regulatory packet for a specific market - reach out and we’ll quote.
Compliance & safety

The fine print, in plain English.

What it’s for
Cosmetic raw material - leave-on hair-care formulations (scalp serums, hair tonics, leave-on hair lotions, density-positioned conditioning treatments) at the use rates above; also acceptable in rinse-off cosmetic products and skincare formats where a peptide-based "supports the look of fuller hair" / scalp-comfort positioning is intended. Not a finished consumer product; not for ingestion, injection, or unsupervised topical use outside a formulated finished product.
Claims guidance
Cosmetic structure / function language only (e.g. supports a recovered-looking finish, supports a smoother appearance, helps skin look more uniform). Avoid wound-healing drug language (“heals wounds”, “treats burns”, “repairs skin damage”). Do not make therapeutic claims. The peptide is studied in cosmetic in-vitro and panel work; downstream finished-product claims must be substantiated by the brand.
Storage
  • Store between 2-25 °C in original sealed container away from direct light.
  • Cold storage extends shelf life by ~50% relative to room temperature.
  • Once opened, use within the period stated on the COA.
Regulatory
  • INCI: Hexapeptide-33 (per ICID and PCPC dictionary).
  • Not classified as hazardous based on currently available information per OSHA HazCom 2012 / GHS.
  • Compatible with FDA cosmetic regulations and EU 1223/2009 for the intended use.
  • SDS section 16 disclaimer applies; see the per-recipe SDS for the full classification.
Sensitivity
Hexapeptide-33 is generally well-tolerated in cosmetic use at the rates above; the supplier’s HET-CAM and AMES studies on the peptide indicate non-irritating and non-mutagenic behavior at industry-standard concentrations. The peptide is light-sensitive: store and ship in opaque containers, and avoid prolonged exposure to direct sunlight in finished formulations. Avoid prolonged contact with strong oxidisers, sulfuric or phosphoric acids, acetic anhydride, sustained heat above 45 °C, and prolonged exposure to pH > 7.0 - any of these can hydrolyze the peptide and reduce in-formula activity. Patch-test finished formulations per standard cosmetic protocol.
Questions
Documentation, regulatory, custom recipes, COA-on-file requests, or anything else - email materials@formulatelabs.ai and we’ll route to the right person.
1 kg
$91,800.00
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