Caffeoyl Tetrapeptide-80: 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 publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Caffeoyl Tetrapeptide-80?

Caffeoyl Tetrapeptide-80 is a lab made ingredient created by linking caffeic acid, a plant based compound found in coffee and many fruits, with a short chain of four amino acids known as Tetrapeptide-80. The pairing blends the natural antioxidant power of caffeic acid with the skin friendly touch of a peptide.

The idea of joining antioxidants with peptides took off in the early 2000s when brands began looking for multitasking actives that could fight free radicals and support the skin’s feel. Researchers found that bonding caffeic acid to a tetrapeptide improved stability in water based formulas and made the peptide more effective on the skin’s surface. Since then, Caffeoyl Tetrapeptide-80 has moved from the lab bench into commercial skin care lines.

Manufacturers start with purified caffeic acid, then activate it so it can attach to the N-terminal of Tetrapeptide-80. Gentle reaction conditions protect the peptide chain, and the finished material is purified, dried and tested for safety before it ships to cosmetic labs.

You will usually spot Caffeoyl Tetrapeptide-80 in lightweight serums, daily moisturizers, sheet masks, eye creams, anti aging blends and after sun treatments where a soothing antioxidant boost is welcome.

Caffeoyl Tetrapeptide-80’s Cosmetic Benefits/Uses

This dual action ingredient improves both the feel and protection level of many skin care formulas.

  • Antioxidant: Helps neutralize free radicals created by UV light and pollution which can lead to dull tone and early lines. By curbing this damage it supports a healthier looking complexion.
  • Emollient: Softens the outer layer of skin, smooths flakes and improves the spreadability of creams and serums so they glide on comfortably.

Who Can Use Caffeoyl Tetrapeptide-80

Caffeoyl Tetrapeptide-80 is generally well tolerated by most skin types. Its light emollient feel suits dry, normal and combination skin, while the non greasy finish makes it comfortable for oily skin too. People with very reactive or eczema-prone skin can usually use it because the peptide base is gentle, though they should pay attention to how their skin responds when new products are introduced.

The ingredient is synthesised from plant sourced caffeic acid and lab made amino acids, with no animal derivatives involved in standard production. That makes it a vegan and vegetarian friendly choice.

No specific warnings link Caffeoyl Tetrapeptide-80 to pregnancy or breastfeeding concerns. Still, data is limited, so this information is not medical advice. Expectant or nursing mothers should run any skincare product past a doctor to be on the safe side.

Caffeoyl Tetrapeptide-80 does not trigger photosensitivity. In fact its antioxidant activity helps buffer some free radicals formed after sun exposure, though it is not a replacement for sunscreen.

The peptide layers well with most common actives including niacinamide, hyaluronic acid and gentle antioxidants. If you use strong exfoliating acids or retinoids and notice dryness, you may prefer to alternate applications rather than layer everything at once.

Potential Side Effects/Adverse Reactions

Side effects from topical Caffeoyl Tetrapeptide-80 vary from person to person. The following is a list of potential reactions, yet most users will not experience any of them when the ingredient is formulated correctly.

  • Mild redness or stinging on very sensitive skin
  • Temporary itching where the product is applied
  • Rare allergic contact dermatitis in individuals allergic to caffeic acid derivatives
  • Slight eye irritation if the product migrates into the eyes

If you notice any of these effects stop using the product and consult a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 0-1 out of 5. Caffeoyl Tetrapeptide-80 is small and water friendly so it sits lightly on the skin rather than forming a pore blocking film. Its emollient role is mostly surface smoothing which keeps the texture breathable.

Because of this low clogging potential the ingredient is generally fine for acne prone skin.

Breakouts are more likely to come from richer oils or waxes mixed into the same product so scan the full formula if congestion is a worry.

Summary

Caffeoyl Tetrapeptide-80 teams the antioxidant punch of caffeic acid with the skin comforting feel of a tetrapeptide giving it the dual ability to fend off free radicals and leave skin softer.

It is still a niche player found mainly in newer serums and moisturizers aimed at anti aging and after sun care yet its multitasking benefits are helping it gain traction.

Studies and real world use point to a high safety profile with low chances of irritation or clogged pores. As with any new skincare step a quick patch test is a smart precaution to confirm personal tolerance.

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