Ppg-1 Hydroxyethyl Caprylamide: 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: July 1, 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 Ppg-1 Hydroxyethyl Caprylamide?

Ppg-1 Hydroxyethyl Caprylamide is a lab made ingredient whose chemical name, N-[2-(2-Hydroxypropoxy)ethyl] octamide, hints at its structure: a short polypropylene glycol chain (Ppg-1) linked to caprylic acid, an eight-carbon fatty acid sourced from coconut or palm oil. Chemists first combined these building blocks in the late 1990s while looking for mild cleansers that would also help oil and water stay mixed. The process starts with propylene oxide to make the tiny polypropylene glycol segment, which is then reacted with caprylic acid to form the caprylamide part, followed by attachment of a hydroxyethyl group that boosts water compatibility. The final liquid is filtered and purified for cosmetic use.

Because it can clean skin without stripping and also keep formulas stable, brands add Ppg-1 Hydroxyethyl Caprylamide to face and body washes, micellar waters, cream cleansers, shampoos, lightweight lotions, hydrating masks and makeup removers.

Ppg-1 Hydroxyethyl Caprylamide’s Cosmetic Benefits/Uses

This ingredient does double duty in many personal care products

  • Cleansing: Its small glycol segment is water loving while the caprylic tail is oil loving, so it lifts away dirt, makeup and excess sebum then rinses off easily. The result is clean skin or hair that still feels soft
  • Emulsifying: It helps blend oily ingredients with watery ones, keeping creams, lotions and washes smooth and uniform through their shelf life which means users get the same texture and performance every time they pump or pour the product

Who Can Use Ppg-1 Hydroxyethyl Caprylamide

This ingredient is generally well tolerated by all skin types. Its mild cleansing action suits normal, combination and oily skin especially well because it removes excess sebum without a squeaky dry feel. Dry or mature skin can also use it when the overall formula includes added moisturizers. Highly sensitive or compromised skin should proceed cautiously, as with any new cleanser, because even gentle surfactants may sometimes trigger discomfort.

Ppg-1 Hydroxyethyl Caprylamide is synthesized in a lab using coconut or palm-derived caprylic acid and petroleum-derived propylene oxide, so no animal materials are involved. That makes it suitable for vegans and vegetarians, provided the finished product is certified cruelty free.

Regulatory reviews have not flagged this ingredient as a risk for pregnancy or breastfeeding. Still, this is not medical advice and anyone who is pregnant or nursing should ask a healthcare professional before adding new skincare products.

It does not cause photosensitivity, so there is no extra need for sun precautions beyond daily SPF use.

Potential Side Effects/Adverse Reactions

Responses to topical Ppg-1 Hydroxyethyl Caprylamide differ from one person to another. The points below cover possible reactions, yet most people will not notice any of them when the ingredient is used correctly in a well formulated product.

  • Temporary redness or stinging
  • Mild itching
  • Dry or tight feeling if overused
  • Rare allergic contact dermatitis

If you notice any of these effects stop using the product and seek medical advice if irritation persists.

Comedogenic Rating

Rating: 1/5
Ppg-1 Hydroxyethyl Caprylamide is a lightweight surfactant with a short polypropylene glycol chain, so it rinses off easily and does not linger in pores. It contains only a small fatty segment from caprylic acid, which is less likely to clog pores than longer, heavier oils. Because it helps wash away excess sebum rather than adding an occlusive film, the risk of causing blackheads or pimples is low.

Suitable for acne-prone or breakout-prone skin in most formulations.

Formulas that combine this ingredient with heavy butters or waxes could still be comedogenic overall, so always look at the full ingredient list.

Summary

Ppg-1 Hydroxyethyl Caprylamide works mainly as a gentle cleanser and an emulsifier. Its water-loving glycol end grabs onto water while the oil-loving caprylic tail binds to oils, letting it lift dirt and makeup then rinse away clean. The same split personality lets it keep oil and water smoothly blended in lotions and washes so the texture stays even from the first use to the last.

You will find it in a modest number of face washes, micellar waters and light lotions, but it is not as famous as older surfactants like sodium laureth sulfate or classic emulsifiers like glyceryl stearate. Smaller indie brands looking for mildness often use it.

Safety reviews rate this ingredient as low risk with only rare irritation reports. Still, skin can be unpredictable so do a quick patch test when trying any new product that contains it.

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