Tranexamoyl Sh-Pentapeptide-12 Sp: 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 Tranexamoyl Sh-Pentapeptide-12 Sp?

Tranexamoyl Sh-Pentapeptide-12 Sp is a lab-made peptide that blends a short chain of five amino acids with a derivative of tranexamic acid. The peptide part is designed to signal the skin to behave in a youthful balanced way while the tranexamic acid segment helps brighten and even out tone. It was first explored by cosmetic chemists looking to merge the firming effects of peptides with the complexion-boosting reputation of tranexamic acid. Production starts with solid-phase peptide synthesis where the amino acids are linked in a set order. After that the peptide is coupled with the tranexamic group then purified and stabilized for skin care use. You will most often spot it in leave-on products such as serums masks eye creams anti-aging lotions and tone-correcting moisturizers where a light yet potent active fits best.

Tranexamoyl Sh-Pentapeptide-12 Sp’s Cosmetic Benefits/Uses

This ingredient is valued for a single key role in formulas.

Skin conditioning: It supports a smoother softer feel, helps skin retain moisture and can improve overall tone for a fresher look

Who Can Use Tranexamoyl Sh-Pentapeptide-12 Sp

This peptide suits most skin types including dry, normal, combination and oily. Because it is lightweight and non greasy people with easily clogged pores usually tolerate it well while those with sensitive skin tend to appreciate its gentle nature. Individuals with a history of strong peptide or tranexamic acid intolerance should proceed with caution as they might notice redness or tingling.

The ingredient is made synthetically without any animal derived raw materials so it is considered vegan friendly and therefore suitable for vegetarians too.

No specific warnings link this ingredient to problems during pregnancy or breastfeeding. That said this is not medical advice and anyone who is pregnant or nursing should ask a healthcare professional before adding new skincare to their routine just to be safe.

Tranexamoyl Sh-Pentapeptide-12 Sp does not make skin more sensitive to sunlight so no extra sun precautions are needed beyond daily sunscreen. It also plays well with most other common actives like niacinamide and hyaluronic acid making it easy to slot into an existing regimen.

Potential Side Effects/Adverse Reactions

Side effects and reactions to topical Tranexamoyl Sh-Pentapeptide-12 Sp vary from person to person. The list below covers potential issues which are unlikely for most users when the formula is well made and used as directed.

  • Temporary redness or warmth
  • Mild tingling or stinging on application
  • Itchiness or a subtle rash in sensitive individuals
  • Dry or flaky patches if layered with other strong actives
  • Allergic contact dermatitis in rare cases

If any unwanted reaction occurs stop using the product and consult a healthcare professional for guidance.

Comedogenic Rating

Rating: 0–1 (very low)

Tranexamoyl Sh-Pentapeptide-12 Sp is a small, water-soluble peptide that does not leave an oily or waxy residue on skin, so it has virtually no tendency to clog pores. Any formula that keeps this ingredient dissolved in a lightweight base will remain non-occlusive, which is why the rating sits at the lowest end of the scale.

Because of this low rating the ingredient is generally suitable for people prone to acne or frequent breakouts.

As with any cosmetic, the overall comedogenicity depends on the full formula, so check the product’s complete ingredient list if you are highly sensitive to pore-clogging agents.

Summary

Tranexamoyl Sh-Pentapeptide-12 Sp is a lab-crafted peptide that conditions skin by encouraging a smoother surface, boosting moisture retention and subtly brightening tone thanks to its tranexamic acid component. It works by sending signals that support balanced cell behavior while simultaneously interfering with the pathways that lead to dull or patchy pigmentation.

You will mostly find it in targeted serums, light creams and eye treatments, but it is still a niche addition compared to household names like hyaluronic acid or vitamin C. Those who have tried it often appreciate how easily it layers without heaviness.

Safety data shows it is well tolerated for most users, with only mild transient reactions reported in a small minority. As with any new skincare step it is wise to carry out a patch test first to make sure your skin agrees with the formula.

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