Caffeoyl Hexapeptide-56: 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 24, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Caffeoyl Hexapeptide-56?

Caffeoyl Hexapeptide-56 is a lab-crafted compound that marries two well-known building blocks: caffeic acid, a plant-derived antioxidant found in coffee beans, fruits and herbs, and Hexapeptide-56, a short chain of six amino acids. Scientists link these pieces together to create a molecule that takes the protective power of caffeic acid and the skin-friendly properties of peptides then delivers them in one stable package.

The ingredient first gained attention in the early 2010s when formulators searched for gentle antioxidant alternatives to traditional vitamin C. By coupling caffeic acid with a peptide, researchers found they could boost skin defense while avoiding the color shifts and sting that sometimes come with pure acids. As patents expired it moved from high-end spa brands into mainstream skin and hair care lines.

Manufacturing starts with plant-sourced caffeic acid that is purified then activated so it can bond to Hexapeptide-56. The reaction takes place in water at controlled temperatures to keep the peptide intact. After filtration and drying the finished powder is blended into cosmetic bases at low concentrations, usually below 1%.

You will spot Caffeoyl Hexapeptide-56 in leave-on serums, anti-aging creams, daily moisturizers, sheet masks, scalp tonics and color-protection shampoos. Its versatility lets formulators slip it into both water-based gels and richer emulsions.

Caffeoyl Hexapeptide-56’s Cosmetic Benefits/Uses

This multitasker supports skin and hair in several ways.

  • Antioxidant: Neutralizes free radicals that form from sun exposure, pollution and stress which helps fend off dullness and early wrinkles
  • Hair conditioning: Coats strands so they feel smoother look shinier and resist breakage
  • Skin protecting: Reinforces the skin barrier reducing moisture loss while soothing areas that feel irritated or tight

Who Can Use Caffeoyl Hexapeptide-56

Caffeoyl Hexapeptide-56 is generally well tolerated by all skin types. Dry or mature skin can benefit from its barrier support while oily and combination skin appreciate its lightweight texture that does not feel greasy. Sensitive skin usually handles it well thanks to its low use levels although anyone with a known allergy to coffee or caffeic acid derivatives should proceed with extra caution.

The molecule is created from plant sourced caffeic acid and a synthetically produced peptide so it contains no animal derived components. This makes it suitable for vegans and vegetarians provided the finished product as a whole is certified cruelty free.

No specific warnings exist for pregnant or breastfeeding women. The ingredient sits on the surface and has minimal chance of entering the bloodstream. Still this is not medical advice and anyone who is pregnant or nursing should discuss any cosmetic product with a qualified healthcare provider before use just to be safe.

Caffeoyl Hexapeptide-56 does not increase photosensitivity. It can even help limit photo induced oxidative stress yet daily sunscreen remains essential for overall skin health.

The ingredient plays nicely with most other actives and works in both rinse off and leave on formulas at low percentages, making it a flexible choice for a wide range of personal care products.

Potential Side Effects/Adverse Reactions

Responses to topical Caffeoyl Hexapeptide-56 vary from person to person. The effects listed below are possible but unlikely when the ingredient is used correctly in a well formulated product and most people will experience none of them.

  • Transient redness or warmth particularly on very sensitive skin
  • Mild tingling or stinging if applied to freshly exfoliated or compromised skin
  • Allergic contact dermatitis in individuals sensitive to caffeic acid or certain peptides
  • Eye irritation if the product accidentally migrates into the eye area
  • Scalp buildup when used in hair products and not rinsed thoroughly

If you notice persistent irritation swelling or any unexpected reaction stop using the product and consult a healthcare professional or dermatologist for guidance.

Comedogenic Rating

Rating: 1/5

Caffeoyl Hexapeptide-56 is water soluble and used at very low levels, so it does not linger in pores or leave an occlusive film that could trap oil and debris. Peptides on their own are considered non pore clogging and caffeic acid is lightweight and easily rinsed away. For these reasons its comedogenic potential is minimal, earning it a 1 rather than a perfect 0 only because final formulas and accompanying ingredients can influence how skin reacts.

With such a low rating this ingredient is generally suitable for those prone to acne or breakouts.

The overall pore friendliness of any product will still depend on the full ingredient list, texture and how thoroughly it is removed when cleansing.

Summary

Caffeoyl Hexapeptide-56 combines antioxidant caffeic acid with a six-amino-acid peptide to defend skin and hair against free radicals, strengthen the skin barrier and smooth hair cuticles. It delivers these benefits in a small, stable molecule that works well in water based and emulsion formulas.

Although not as famous as vitamin C or niacinamide, this hybrid compound is gaining traction in mid tier and indie brands looking for gentle multifunctional actives.

Safety data and consumer experience show it to be low risk for irritation or pore blockage when used in recommended concentrations. As with any new skincare or haircare ingredient it is wise to patch test a fresh product first to make sure your individual skin agrees with the formula.

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