Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: July 1, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate?

Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate is a lab-crafted peptide that blends a fatty acid chain called palmitic acid with a small protein fragment originally identified in snail secretion. Chemists attach palmitic acid to the peptide then cap one end with the amino acid lysine and turn the other end into an amide before neutralizing the whole molecule with acetic acid to form a stable salt. Adding the palmitic acid makes the peptide more oil-friendly so it can slip into skin’s surface layers while the acetate form keeps it easy to handle in a formula.

Interest in snail-derived peptides grew during the 2000s when Korean beauty brands popularized snail filtrate for its ability to soothe and smooth skin. Researchers isolated specific peptides behind those effects and found they could be reproduced synthetically without harvesting large volumes of snail mucus. Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate is one of those lab-made versions and it entered premium skin care lines as formulators looked for gentle alternatives to retinoids and acids.

The ingredient is produced in controlled reactors where the base peptide is built from individual amino acids, reacted with palmitoyl chloride, modified with lysine, converted to an amide, then purified and combined with acetic acid. The final powder dissolves well in both water-based and oil-based phases which gives chemists flexibility.

You will most often see it in anti-aging serums, firming masks, lightweight moisturizers, targeted eye treatments, sheet masks and post-procedure soothing gels where a small dose of a performance peptide can make a visible difference.

Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate’s Cosmetic Benefits/Uses

This ingredient is classified as a skin-conditioning agent. That means it helps skin feel softer, look smoother and maintain better moisture balance. When added to a formula it can support the natural proteins that keep skin firm and springy, calm the look of irritation after exfoliation or sun exposure and create a more even texture over time. Regular use may improve the overall resilience of the skin barrier which in turn enhances the results of other active ingredients in the product.

Who Can Use Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate

This peptide is generally well tolerated by all major skin types including dry, normal, combination and oily. Its lightweight texture and non-occlusive nature mean it will not leave a greasy film on oilier skin while the conditioning action can help relieve dryness or tightness in dehydrated skin. Sensitive skin users typically handle it well because it has a neutral pH and is free of known irritants, though anyone with a history of peptide allergies should stay cautious.

The molecule is produced entirely by chemical synthesis with no harvesting of live snails, animal by-products or cell culture media derived from animals, which makes it suitable for vegans and vegetarians provided the finished formula also meets cruelty-free standards.

Current data show no hormone-like activity and no systemic absorption of concern, so most professionals consider it acceptable for use during pregnancy and breastfeeding. That said this is not medical advice and anyone who is pregnant or nursing should check with their doctor before adding new skincare products just to be safe.

Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate does not increase photosensitivity. Normal daytime sun protection practices are still recommended because daily UV exposure is the biggest driver of skin aging but the peptide itself does not make skin more vulnerable to sunlight.

Potential Side Effects/Adverse Reactions

Responses to any topical ingredient vary from person to person. The following points outline potential side effects of Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate though, when properly formulated, most users will not experience them.

  • Temporary redness or warmth immediately after application
  • Mild stinging or itching on very reactive skin
  • Rare allergic contact dermatitis presenting as swelling or hives
  • Occlusion-related breakouts if the finished product is paired with heavy oils or waxes on acne-prone skin
  • Interaction irritation when layered with highly acidic formulas or strong exfoliants in the same routine

If any of these symptoms occur stop use and seek guidance from a qualified healthcare professional or dermatologist.

Comedogenic Rating

Rating: 1/5. Although the peptide carries a palmitic acid tail, it is used at very low percentages and the overall molecule remains lightweight and water compatible. It does not form an occlusive film or trap oil in pores, so the likelihood of clogging is minimal. This makes it generally suitable for acne-prone or breakout-prone skin. Only when blended into very rich creams heavy in butters or waxes could the finished formula edge higher on the comedogenic scale, so check the full ingredient list if you are highly sensitive.

Summary

Palmitoyl Lysyl S-Snail Oligopeptide-1 Amide Acetate is a lab made peptide that conditions skin by boosting surface hydration, supporting collagen and calming visible irritation. The palmitic acid tail helps it penetrate the upper layers while the snail inspired peptide sequence sends signals that encourage firmer, smoother looking skin.

It enjoys moderate popularity, mostly in Korean and high end Western serums and eye treatments where brands look for gentle alternatives to retinol. You will not find it in every drugstore moisturizer yet but its presence is steadily growing as consumers seek science backed peptides.

Current safety data show a low risk of irritation, no hormonal activity and no known systemic concerns, so it is considered safe for routine use. As with any new skincare product a brief patch test is wise just to be sure your skin agrees with the full formula.

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