Sh-Hexapeptide-6 Sp 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 Sh-Hexapeptide-6 Sp Amide?

Sh-Hexapeptide-6 Sp Amide is a lab crafted chain of six amino acids designed to act on Protease Activated Receptor-2, better known as PAR-2. Because it is synthetically produced, it does not rely on animal or plant harvesting which helps maintain consistent quality and purity. The peptide is built through solid-phase synthesis: chemists add one amino acid at a time to a growing chain anchored to a resin, then convert the finished peptide into its amide form to improve stability on the skin.

Interest in PAR-2 modulators rose when researchers found the receptor influenced skin barrier function and pigmentation. Peptide chemists soon explored short sequences that could gently interact with PAR-2 without the irritation linked to harsher actives. Sh-Hexapeptide-6 Sp Amide emerged from this work and made its way into cosmetic labs in the early 2010s where formulators valued its compact size and antioxidant behavior.

Today you will most often see Sh-Hexapeptide-6 Sp Amide in serums, lightweight lotions, sheet masks and targeted anti-aging or brightening treatments. Its small molecular weight helps it sit well in water-based formulas, making it a frequent choice for fast-absorbing products aimed at dull or stressed skin.

Sh-Hexapeptide-6 Sp Amide’s Cosmetic Benefits/Uses

This peptide is mainly valued for one key performance role in skincare formulas.

Antioxidant: Sh-Hexapeptide-6 Sp Amide helps neutralize free radicals generated by UV exposure, pollution and everyday metabolic processes. By reducing oxidative stress it supports a more even skin tone and can lessen the appearance of premature aging signs such as fine lines or lackluster texture. Its mild nature makes it suitable for daily use, allowing formulators to add an extra layer of environmental defense without increasing the risk of irritation.

Who Can Use Sh-Hexapeptide-6 Sp Amide

Most skin types, including dry, oily, combination and sensitive, can comfortably handle Sh-Hexapeptide-6 Sp Amide because it is a gentle antioxidant with a small molecular size that rarely disrupts the skin barrier. People dealing with heightened sensitivity or conditions like rosacea may still appreciate its mild profile since it lacks harsh exfoliating or highly acidic qualities.

The peptide is made entirely through synthetic chemistry, so it contains no animal derived components. This makes it suitable for both vegans and vegetarians, provided the finished product formula and processing are also free of animal inputs.

Current data does not flag Sh-Hexapeptide-6 Sp Amide as a pregnancy or breastfeeding concern. That said this is not medical advice and anyone who is pregnant or nursing should review all skincare products with their healthcare professional to be on the safe side.

The ingredient does not increase photosensitivity, so it will not make skin burn more easily in the sun. Daily sunscreen is still essential for overall skin health.

Potential Side Effects/Adverse Reactions

Skin responses to topical Sh-Hexapeptide-6 Sp Amide differ from person to person. The points below outline potential reactions, yet they are considered uncommon when the ingredient is used at typical cosmetic levels and formulated correctly.

  • Mild redness or warmth short-lived flushing can appear, especially on very reactive skin
  • Temporary itching or tingling usually subsides as the product absorbs
  • Contact irritation rare stinging or burning if paired with other potent actives or on compromised skin
  • Allergic response such as hives or swelling in individuals with a specific peptide sensitivity

If any adverse effect occurs stop using the product immediately and seek guidance from a medical professional if symptoms persist or worsen.

Comedogenic Rating

Rating: 0 (non-comedogenic)

Sh-Hexapeptide-6 Sp Amide is a small water-soluble peptide that does not leave an oily film or clog pores. It is typically used at very low concentrations and is easily rinsed away or absorbed, so it is unlikely to trap dead skin cells or sebum that could form comedones.

Suitable for acne-prone or breakout-prone skin.

Because it is most often formulated in lightweight serums or gel creams, the overall product texture tends to be acne friendly as well, though the final formula always matters more than a single ingredient.

Summary

Sh-Hexapeptide-6 Sp Amide is a lab-engineered hexapeptide that mainly acts as an antioxidant, helping to mop up free radicals generated by UV light, pollution and natural skin metabolism. By reducing this oxidative stress it supports a brighter tone and smoother look while working gently enough for sensitive skin.

Although not a household name like vitamin C, the peptide has gained a steady following among formulators looking for targeted lightweight actives. You will most often spot it in modern serums or sheet masks aimed at dullness and early signs of aging.

Current safety data shows a very low risk of irritation or pore clogging and no links to hormonal or systemic effects. As with any new skincare product it is smart to do a quick patch test first to be sure your skin agrees with the full formula.

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