Sh-Hexapeptide-2: 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-2?

Sh-Hexapeptide-2 is a lab crafted chain of six amino acids inspired by a natural protein known as TRAMP, or tyrosine rich acidic matrix protein. Scientists first studied this tiny portion of the larger protein for its ability to signal skin cells to look smoother and more even. Over time peptide researchers found ways to make the hexapeptide by synthesizing the exact amino acid sequence in controlled facilities, using either solid-phase peptide chemistry or bio-fermentation with harmless bacteria that are trained to churn out the sequence. Because the process is done in closed systems, the final ingredient is highly purified and consistent from batch to batch.

Peptides like Sh-Hexapeptide-2 became popular in cosmetic labs during the early 2000s when brands began looking for gentler options than exfoliating acids or strong retinoids. Its small size lets it sit on the skin surface and still send helpful messages to the upper layers, making it a useful pick for day and night formulas. Today you will most often see Sh-Hexapeptide-2 in brightening serums, age-defying moisturizers, sheet masks, eye treatments, spot correctors and post-treatment soothing creams. It is added at low levels, usually under one percent, so it works alongside hydrators, antioxidants and sunscreens without changing the feel of the product.

Sh-Hexapeptide-2’s Cosmetic Benefits/Uses

The main role of Sh-Hexapeptide-2 in skincare is skin conditioning. By supporting a balanced moisture barrier and encouraging a more even look, it helps formulas leave the skin softer, smoother and visibly refreshed.

Who Can Use Sh-Hexapeptide-2

Because this peptide focuses on conditioning rather than exfoliating or resurfacing, it is generally well accepted by all major skin types including dry, normal, combination, oily and mature skin. Its water-light texture sits comfortably even on easily congested or sensitive skin since it does not contain heavy oils or strong actives that could trigger flare-ups. Those with very reactive or allergy-prone skin may still want to scan the full ingredient list of any formula to make sure companion ingredients suit their needs.

Sh-Hexapeptide-2 is produced by synthetic chemistry or biotechnology, not derived from animals, so products using it are typically suitable for vegans and vegetarians provided the rest of the formula is free of animal by-products.

There is no established evidence that this peptide poses a risk to women who are pregnant or breastfeeding when used topically at cosmetic levels. That said this information should never replace professional guidance, so anyone who is expecting or nursing should discuss all skincare choices with their health care provider first.

The peptide does not make the skin more sensitive to sunlight, and it can be worn during the day under sunscreen without special precautions. It also plays nicely with most other common skincare ingredients, including niacinamide, vitamin C, and gentle exfoliating acids.

Potential Side Effects/Adverse Reactions

Individual responses to topical Sh-Hexapeptide-2 can vary. The points below outline potential drawbacks, yet most users will not encounter them when the ingredient is formulated and used properly.

  • Mild redness or warmth shortly after application
  • Transient tingling or itching, especially on very sensitive skin
  • Slight dryness if the overall formula lacks adequate moisturizers
  • Allergic contact dermatitis in rare cases of specific peptide sensitivity

If any uncomfortable reaction develops discontinue use and seek advice from a medical professional.

Comedogenic Rating

Rating: 0 out of 5. Sh-Hexapeptide-2 is a small water-soluble chain of amino acids that leaves no greasy film and does not block pores. It sits on the skin surface to send signals rather than forming an occlusive layer, so it has virtually no tendency to trap oil or dead cells inside follicles. This makes it suitable for people who are prone to acne or breakouts. Keep in mind that the overall formula matters too, so pore-clogging can still occur if the product contains heavy oils or waxes.

Summary

Sh-Hexapeptide-2 is a lab made hexapeptide that conditions skin by helping it look smoother more even and comfortably hydrated. It does this by signaling surface cells to support a balanced barrier and a refined texture without the need for strong exfoliants. While not as famous as peptides like Matrixyl it is gaining notice in brightening serums eye creams and gentle anti-aging blends thanks to its light feel and compatibility with many actives.

The ingredient is regarded as very safe at cosmetic levels, with only rare reports of mild irritation. As with any new skincare step it is wise to perform a patch test before applying a full product to the face, especially for those with sensitive or reactive skin.

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