Hexapeptide-48: 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 27, 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 Hexapeptide-48?

Hexapeptide-48 is a lab-designed chain of six amino acids that include aspartic acid, leucine, phenylalanine, proline and tyrosine. Because it is synthesized rather than harvested from plants or animals it offers consistent purity and performance. Peptide research gained momentum in the early 2000s when scientists realized short amino acid chains could signal skin cells to behave more youthfully, leading to the development of Hexapeptide-48 for cosmetic use. Manufacturers typically create it through solid-phase peptide synthesis, a step-by-step method that links the amino acids in a controlled environment then purifies the finished peptide. You will most often see Hexapeptide-48 in anti-aging serums, moisturizers, sheet masks, eye creams and targeted treatments that aim to boost skin smoothness and resilience.

Hexapeptide-48’s Cosmetic Benefits/Uses

In skin care formulas Hexapeptide-48 serves one primary purpose.

As a skin conditioning agent it helps the surface of the skin feel softer, improves moisture retention and supports a more even texture. Consistent use can leave the complexion looking smoother and plumper while helping to diminish the appearance of fine lines caused by dehydration or daily stressors.

Who Can Use Hexapeptide-48

Hexapeptide-48 is generally considered suitable for all skin types including dry, normal, combination, oily and sensitive skin because it is lightweight and free of common irritants like fragrance or essential oils. If you have highly reactive or compromised skin it is wise to introduce any new peptide product slowly to ensure comfort.

Because this peptide is fully synthetic and contains no animal-derived components it aligns with vegan and vegetarian lifestyles.

There is no research showing that Hexapeptide-48 poses a specific risk to pregnant or breastfeeding women when used topically in cosmetic concentrations. However this is not medical advice and anyone who is pregnant or nursing should discuss any new skincare product with a qualified healthcare professional.

Hexapeptide-48 does not increase photosensitivity so it can be used morning or night without making the skin more prone to sunburn. Standard daytime sun protection is still recommended to guard against everyday UV damage.

Potential Side Effects/Adverse Reactions

Side effects from topical Hexapeptide-48 vary from person to person. The following list covers potential reactions although most users will not experience them when the ingredient is formulated and used correctly.

  • Mild redness or warmth
  • Transient stinging or tingling immediately after application
  • Dry patches if used in an overly strong formula or layered with multiple exfoliating actives
  • Allergic contact dermatitis in individuals sensitive to the peptide itself or other ingredients in the product
  • Small breakouts if the overall formula is too rich for acne-prone skin

If you experience any persistent discomfort stop using the product and seek advice from a healthcare provider or dermatologist.

Comedogenic Rating

Rating: 0 out of 5. Hexapeptide-48 is a small, water-soluble peptide with no oily or waxy components that might clog pores. It sits lightly on the skin and is usually delivered in lightweight serums or gels, lowering any risk of trapping dead cells or sebum. Because of this, it is generally considered suitable for acne-prone or breakout-prone skin. Formulation still matters, so pairing it with heavy butters or occlusive oils can change how the finished product behaves.

Summary

Hexapeptide-48 conditions the skin by helping it hold moisture, smooth rough spots and look plumper. It does this through its amino acid sequence that signals surface cells to maintain a healthier barrier and retain water. While not as well known as peptides like Matrixyl or Argireline its use is steadily growing in targeted anti-aging and hydrating formulas thanks to its gentle profile.

Overall safety data are positive with low irritation potential and no evidence of photosensitivity or hormone disruption. As with any new skincare product a small patch test is a smart step to confirm personal compatibility before full application.

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