Pal-AHK, also called Palmitoyl Tripeptide-3, is a synthetic peptide comprised of three amino acids linked to a palmitoyl fatty acid residue. It is used individually or in combination with other peptides to boost collagen synthesis in laboratory experiments examining aging and skin. Pal-AHK is thought to interact with transforming growth factor-β (TGF-β) to activate fibroblasts.
Pal-AHK is being actively investigated in animal models for its ability to boost hair growth, accelerate wound healing, and fight off some of the effects that aging has on the skin. It is under intense study in the cosmeceutical industry for its ability to tighten skin, boost collagen production, and increase the rate at which skin rejuvenates [1].
Pal-AHK is a synthetic peptide in which AHK (alanine-histidine-lysine) has been linked to a palmitoyl fatty acid molecule. The fatty acid makes AHK more fat soluble, which not only increases its skin penetration, but actually increases the absorption of the molecule by cells. Once in the cell, Pal-AHK is thought to activate fibroblasts by stimulating TGF-β.
Animal studies indicate that Pal-AHK can activate fibroblasts and thus increase the rate of extracellular matrix (ECM) production in the skin. The ECM is composed of a number of molecules, with collagen and elastin being the most abundant in many cases. By boosting ECM production, Pal-AHK increases collagen and elastin levels within the skin. This, in turn, improves skin appearance and strength [2,3].
There is also some evidence, from benchtop experiments, that Pal-AHK can influence the production of vascular endothelial growth factor (VEGF). VEGF is an important signaling molecule in the production of new blood vessels. By encouraging blood vessel growth in the skin, Pal-AHK has demonstrated increased skin rejuvenation and hair growth in animal models.
Animal studies have demonstrated relatively profound effects with Pal-AHK and wrinkles. AHK is a well-known fibroblast stimulator and has been shown to boost collagen synthesis in human skin cells grown in the lab. By adding palmitoyl to AHK, researchers have been able to demonstrate enhanced skin penetration in animal models as well as enhanced cell membrane penetration. In other words, palmitoyl helps AHK reach deeper into the skin and penetrate the cells where it can have the greatest effect. This leads to improved collagen synthesis at all levels and thus greater overall effects. Research indicates that Pal-AHK can reduce the appearance of fine lines and wrinkles, improve the appearance of age spots, even out skin tone, improve skin texture, and improve skin smoothness in animal models.
All of our products are manufactured using the Lyophilization (Freeze Drying) process, which ensures that our products remain 100% stable for shipping 3-4 months reconstituted (mixed with bacteriostatic water) to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.
Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until you're ready to reconstitute it with bacteriostatic water.
Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4C (39F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.
However, for longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80C (-112F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
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