S-Frog Oligopeptide-1 Amide: 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: June 30, 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 S-Frog Oligopeptide-1 Amide?

S-Frog Oligopeptide-1 Amide is a lab made peptide inspired by a small part of temporin-1DRb, a natural defense protein first spotted in the skin of the California red-legged frog, Rana draytonii. Scientists trimmed the original 63 amino acid chain down to a focused 14 amino acid sequence, then recreated it through solid-phase peptide synthesis, a method that links amino acids one by one on a resin until the full chain is complete. By building it in a controlled setting, manufacturers avoid animal harvesting and can keep purity and quality consistent from batch to batch.

The cosmetic world became interested in this peptide after early studies showed that frog skin proteins help keep the animal free from excess surface oil and harmful microbes. Formulators saw a chance to translate those traits into skin care, and the ingredient began appearing in niche products in the late 2010s before gaining wider use.

Today S-Frog Oligopeptide-1 Amide is most often found in lightweight moisturizers, anti-blemish serums, balancing toners, sheet masks and leave-on spot treatments. Because it works well in water-based systems, brands may also add it to mists or gel creams aimed at combination or oily skin.

S-Frog Oligopeptide-1 Amide’s Cosmetic Benefits/Uses

This multitasking peptide can improve both the look and comfort of skin when added to a daily routine.

  • Anti-Sebum: Helps regulate excess oil so skin appears fresher and makeup lasts longer
  • Antimicrobial: Limits growth of surface bacteria that can lead to breakouts or irritation which supports a clearer complexion
  • Skin Conditioning: Binds water and smooths the skin surface for a softer touch and more even texture
  • Skin Protecting: Forms a light barrier that defends against everyday environmental stressors such as pollution and dirt

Who Can Use S-Frog Oligopeptide-1 Amide

S-Frog Oligopeptide-1 Amide is generally suitable for normal, combination and oily skin because of its oil balancing nature. Dry skin types can also benefit from its conditioning effect though they may prefer it in formulas paired with richer emollients. Extremely sensitive or compromised skin might find the peptide’s antimicrobial action a touch too active, so those users should proceed cautiously and favor low-strength formulas.

The peptide is made entirely by synthetic chemistry with no animal material or by-products, so it is considered appropriate for vegans and vegetarians.

Current data does not suggest any hormonal activity, therefore products containing S-Frog Oligopeptide-1 Amide are not automatically off limits for women who are pregnant or breastfeeding. Still, this is not medical advice and pregnant or nursing women should review any skincare product with their doctor first to be safe.

The ingredient does not increase skin’s sensitivity to the sun, so it is not known to cause photosensitivity. Standard daytime sun protection is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Reactions to topical S-Frog Oligopeptide-1 Amide differ from person to person. The following points list potential side effects only, and most users will not experience them when the ingredient is properly formulated and used as directed.

  • Mild redness or warmth shortly after application
  • Tingling or stinging sensation that fades within minutes
  • Localized dryness or flaking if used in very high concentrations
  • Irritant contact dermatitis in individuals with highly reactive skin
  • Allergic reaction such as itching or hives in those sensitive to peptides
  • Possible increased irritation when layered with strong exfoliating acids or retinoids

If any negative reaction occurs stop using the product and seek advice from a qualified healthcare professional.

Comedogenic Rating

Rating: 0 / 5

S-Frog Oligopeptide-1 Amide is a small, water-soluble peptide that does not form heavy films or clog pores the way thick oils and waxes can. It is usually added at very low percentages, further reducing any likelihood of blockage. For these reasons formulators consider it non-comedogenic.

The ingredient is therefore suitable for people who are prone to acne or frequent breakouts.

Keep in mind that overall pore-clogging potential depends on the entire formula. A product rich in occlusive butters could still trigger congestion even if this peptide itself scores a zero.

Summary

S-Frog Oligopeptide-1 Amide works as an anti-sebum, antimicrobial, conditioning and protective agent. It helps dial back excess oil, keeps surface bacteria in check, binds moisture for a smoother feel and lays down a light shield against daily grime. These benefits come from the peptide’s ability to interact with the skin’s outer layer, modulating sebum production and disrupting microbial membranes while remaining gentle enough for regular use.

Right now the ingredient is more of a niche favorite than a mainstream staple, often featured in indie or dermatologist-led lines targeting combination or oily skin. As awareness of multitasking peptides grows it is beginning to appear in larger brands too.

Overall safety data looks favorable, with most users experiencing no irritation when formulas are well balanced. As with any new skincare product it is wise to run a simple patch test first to be on the safe side.

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