Sodium Cocoyl Hydrolyzed Amaranth Protein: 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
Share:
Inside this article:

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 Sodium Cocoyl Hydrolyzed Amaranth Protein?

Sodium Cocoyl Hydrolyzed Amaranth Protein is a plant and coconut derived ingredient created by joining fatty acids from coconut oil with small protein fragments from amaranth grain. The result is a water friendly sodium salt that dissolves easily and can blend into many personal care bases. Amaranth, a staple grain in Central and South America for thousands of years, has gained attention in beauty labs over the past few decades because its proteins are rich in lysine and have a balanced amino acid profile. Researchers looking for gentle, sustainable alternatives to animal proteins began hydrolyzing amaranth in the late 1990s, then paired it with coconut fatty acids to improve solubility and skin affinity. Production starts with coconut oil that is converted to coconut acid chloride. This reacts with pre-hydrolyzed amaranth protein under controlled conditions, then neutralization with sodium hydroxide yields the final salt. The finished ingredient appears as a light amber liquid or fine powder that carries a mild grain-like scent.

Because it is mild, skin friendly and easy to formulate, Sodium Cocoyl Hydrolyzed Amaranth Protein shows up in a range of products. You will most often spot it in facial cleansers, body washes, sulfate-free shampoos, micellar waters, sheet masks and leave-on moisturizers that aim to soothe and soften without stripping the skin. It is also popular in baby washes and sensitive skin formulas where harsh surfactants are avoided.

Sodium Cocoyl Hydrolyzed Amaranth Protein’s Cosmetic Benefits/Uses

This ingredient is valued for one key role within formulas: skin conditioning. By forming a light film of amino acids on the skin it helps attract and hold moisture, leaving the surface feeling smoother and more supple. At the same time the coconut-derived portion offers a mild cleansing action that does not disturb the skin barrier, so cleansers containing it can leave the face feeling fresh yet comfortable.

Who Can Use Sodium Cocoyl Hydrolyzed Amaranth Protein

Sodium Cocoyl Hydrolyzed Amaranth Protein is considered suitable for most skin types, including dry, normal, combination and sensitive skin, thanks to its gentle cleansing action and moisture binding amino acids. Oily and acne prone users usually tolerate it well since it does not leave a heavy residue although those highly reactive to any coconut derivatives might prefer to monitor how their skin responds.

The ingredient is plant and coconut derived with no animal components or by-products so it aligns with vegan and vegetarian lifestyles.

Current safety data suggest it is not known to penetrate deeply or interfere with hormonal pathways, so products containing it are generally viewed as safe for use during pregnancy and breastfeeding. This is not medical advice and pregnant or nursing individuals should confirm with their healthcare provider before starting any new skincare product just to be cautious.

Sodium Cocoyl Hydrolyzed Amaranth Protein does not increase photosensitivity, so it will not make skin more prone to sunburn. As always daily sunscreen is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Reactions to topical Sodium Cocoyl Hydrolyzed Amaranth Protein differ from person to person. The points below outline potential side effects that may occur, but they are uncommon when the ingredient is used at normal cosmetic levels and processed correctly by reputable manufacturers.

Transient redness or mild stinging in extremely sensitive skin, usually subsiding shortly after rinsing

Allergic contact dermatitis in individuals specifically allergic to coconut derivatives or grain proteins

Dry or tight feeling if formulated in a high foaming cleanser without adequate emollients, more likely in very dry skin types

If any persistent irritation, swelling or rash develops, discontinue use and consult a healthcare professional.

Comedogenic Rating

Rating: 1 out of 5. Sodium Cocoyl Hydrolyzed Amaranth Protein is water soluble and leaves almost no oily residue on the skin. Its amino acid fragments rinse away easily and the coconut fatty acids are bound within the salt form so they do not behave like free oils that could clog pores. Because of this low tendency to block follicles, the ingredient is generally fine for people who are prone to acne or breakouts.

Minor formulation factors can still influence pore clogging. If the product also contains heavy butters or waxes the overall formula could feel richer on the skin. In such cases the final product, not the amaranth protein itself, might contribute to congestion.

Summary

Sodium Cocoyl Hydrolyzed Amaranth Protein is mainly used to condition skin by depositing a light film of moisturizing amino acids while offering very gentle cleansing. It does this by blending the water loving nature of hydrolyzed amaranth protein with the mild surface activity of coconut fatty acids, helping skin feel soft smooth and comfortable after use.

The ingredient sits in the middle ground of popularity. It is not as common as classic surfactants like cocamidopropyl betaine yet formulators looking for plant based gentle options often reach for it, especially in sensitive skin or baby care lines.

Current research and use data show it is low risk with only rare reports of irritation or allergy. Even so it is smart to patch test any new skincare product containing this or any other active so you can be sure it agrees with your individual skin.

Was this article helpful?
More from Glooshi:
ADVERTISEMENT
Get all our top headlines in beauty.
Delivered right to your inbox each week. Zero spam, all goodness, opt-out at anytime.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Get the latest beauty news, top product recommendations & brand-exclusive discount codes direct to your inbox.
Send good feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Send bad feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Search