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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.
What is Tetrapeptide-30?
Tetrapeptide-30 is a synthetic peptide (sequence: Pro-Lys-Glu-Lys, PKEK) inspired by the KEK motif (Lys-Glu-Lys) found in cathelicidin, an antimicrobial polypeptide. This multifunctional peptide effectively reduces hyperpigmentation caused by inflammation or UV exposure, balances skin tone, and regulates pigmentation-inducing factors. Key Benefits of Tetrapeptide-30
Hyperpigmentation Reduction:
Tetrapeptide-30 addresses the root causes of hyperpigmentation by targeting keratinocyte-induced melanocyte activation rather than solely inhibiting tyrosinase. This smart mechanism makes it skin-friendly and effective for post-inflammatory or UV-induced dark spots.
Regulation of Melanogenesis:
By reducing the release of pro-inflammatory cytokines (IL-6 and IL-8) from stressed keratinocytes, Tetrapeptide-30 prevents the production of proopiomelanocortin (POMC), a precursor of α-MSH, the hormone responsible for melanin production. This ensures a significant decrease in melanin synthesis following inflammation or UV damage.
Skin Brightening:
The peptide reduces hyperchromatic age spots and evens out skin tone, providing visible skin brightening without irritation.
Anti-Inflammatory Properties:
Its ability to calm inflammation relieves redness, erythema, and irritation, offering comfort to sensitive or damaged skin.
Universal Efficacy:
Tetrapeptide-30 is effective across all skin types, including Caucasian, Asian, and African skin tones. It addresses various pigmentation concerns such as melasma, post-inflammatory hyperpigmentation (PIH), and acne-related dark spots.
Tetrapeptide-30 is a versatile ingredient used in:
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.
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.
All 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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