Product Usage: This product is intended as a research chemical only. This designation permits the use of research chemicals strictly for in vitro testing and laboratory research, but not for human or animal.. This product should only be handled by licensed, qualified professionals. All information available on this website is for educational purposes only. This product is not a drug, food, or cosmetic and may not be misbranded, misused, or mislabeled as such. Acknowledged to the Terms and Conditions, the customer hereby agrees to take full responsibility on how to use the product.
Description
xWhat is Tetrapeptide-30?
Tetrapeptide-30 (INCI: PKEK – Pro-Lys-Glu-Lys) is a synthetic skin-active peptide derived from the KEK motif found in the natural antimicrobial polypeptide cathelicidin. This multifunctional tetrapeptide is designed to reduce hyperpigmentation, boost skin firmness, and promote cell renewal — making it an ideal ingredient for both anti-aging and skin-brightening formulations.
Key Benefits of Tetrapeptide-30
Hyperpigmentation Control
Unlike standard tyrosinase inhibitors, Tetrapeptide-30 targets the upstream triggers of melanogenesis, specifically inflammatory cytokines (IL-6 and IL-8) and α-MSH production. This helps fade UV- or inflammation-induced dark spots, melasma, and post-inflammatory hyperpigmentation (PIH).
Tetrapeptide-30 Skin Cell Renewal
By soothing inflammation and supporting a healthy epidermal environment, Tetrapeptide-30 promotes skin cell turnover, improving tone, texture, and clarity over time.
Skin Brightening Without Irritation
Reduces hyperchromatic age spots and evens out skin tone without triggering sensitivity. Excellent for all skin types, including sensitive, Asian, and melanated skin tones.
Tetrapeptide-30 for Skin Firmness
While reducing pigmentation, Tetrapeptide-30 also improves skin firmness and elasticity, making it a multifunctional option for anti-aging skincare.
Tetrapeptide-30 Anti-Aging Peptide
Combines brightening and anti-inflammatory properties to reduce both visible signs of aging (like fine lines and dullness) and underlying skin stress that contributes to aging.
Applications
Tetrapeptide-30 is ideal for inclusion in:
- Brightening serums and creams
- Post-acne or post-laser PIH treatments
- Melasma and discoloration control formulas
- Anti-aging creams for dull, uneven skin
- Barrier-repair products for sensitive skin
Technical & Raw Material Info
- Synonyms: TEGO® Pep 4-Even, PKEK peptide
- Peptide Sequence: Pro-Lys-Glu-Lys
- Functionality: Skin brightening, anti-inflammatory, skin renewal
- FDA UNII: H9G9QJT7E2
- Solubility: Water-soluble
- Usage Rate: 1%–5% in emulsions, gels, or serums
Where to Buy Tetrapeptide-30 or Raw Material?
Looking for where to buy Tetrapeptide-30 or source Tetrapeptide-30 raw material for formulation? We offer high-purity, cosmetic-grade Tetrapeptide-30 perfect for R&D, private label manufacturing, or DIY skincare.
Why Choose Tetrapeptide-30?
Tetrapeptide-30 is more than just a skin-brightening agent. Its smart anti-inflammatory mechanism, combined with firming and anti-aging benefits, makes it an exceptional choice for advanced multifunctional skincare. Whether you’re addressing dark spots, aging, or skin sensitivity, this peptide delivers real results without irritation.
Shipping & Return
xReturns Policy
At Qualitide, we are committed to ensuring your satisfaction with our products. Our Satisfaction Guarantee policy allows you to return or exchange any item within 14 days of receiving your order if you are not completely satisfied. Return/Exchange Eligibility To be eligible for a return or exchange: The item must be in its original condition as received, unworn or unused, with tags attached, and in its original packaging. You must provide the receipt or proof of purchase..
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
At QUALITIDE, we aim to make your shopping experience simple and smooth. Here’s how we handle shipping: Processing Time We process all orders within 0 to 1 business day. Orders placed after business hours, on weekends, or on holidays will be processed the next business day. Delivery Time Once processed, delivery takes 2 to 3 business days, depending on your location and the shipping carrier. Total Delivery Time From placing your order to receiving it, the total time is 2 to 4 business days, including both processing and shipping.
Disclaimer
xAll articles and product information provided on this website are for informational and educational purposes only. The products offered on Qualitides are intended solely for in-vitro research purposes. In-vitro studies ("in glass" studies) are conducted outside of the body. These products are not medicines or drugs and have not been evaluated or approved by the FDA to prevent, treat, diagnose, or cure any medical condition, ailment, or disease. Any form of bodily introduction or administration of these products into humans or animals is strictly prohibited by law. By using this website, you acknowledge and agree to comply with all applicable regulations and restrictions related to the products provided by Qualitides.
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