Trihydroxypalmitamidohydroxypropyl Myristyl Ether: 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
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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 Trihydroxypalmitamidohydroxypropyl Myristyl Ether?

Trihydroxypalmitamidohydroxypropyl Myristyl Ether is a lab crafted lipid that comes from two familiar fatty acids: palmitic acid from palm oil and myristic acid from coconut or nutmeg oils. Chemists join these fatty acids with a small plant derived alcohol called glycerin, then add extra hydroxyl (water loving) groups. The result is a creamy wax-like molecule that blends easily with both oils and water based ingredients, making it useful for skin care.

The ingredient appeared in the early 2000s when formulators looked for gentler substitutes for petroleum based emollients. By tweaking natural fatty acids they created a substance that mimics parts of the skin’s own barrier lipids, yet stays stable on the shelf. Production involves esterification: fatty acids are reacted with glycerin followed by controlled oxidation to add the extra hydroxyl groups, then purification to remove any free acids or solvents.

You will most often see Trihydroxypalmitamidohydroxypropyl Myristyl Ether in moisturizers, night creams, barrier repair balms, soothing sheet masks, anti aging serums and hand or body lotions where deep yet light feeling hydration is needed.

Trihydroxypalmitamidohydroxypropyl Myristyl Ether’s Cosmetic Benefits/Uses

This ingredient serves one main role in skin care products: skin conditioning. It softens and smooths the surface, helps replenish lost lipids and supports the natural moisture barrier so skin feels comfortable and looks healthier.

Who Can Use Trihydroxypalmitamidohydroxypropyl Myristyl Ether

This lipid suits most skin types including dry, normal, sensitive, mature and even combination or mildly oily skin because it cushions without feeling heavy or greasy. Extremely oily or very acne prone skin may prefer lighter textures although the ingredient itself is considered low clogging and non occlusive when used at standard levels.

Trihydroxypalmitamidohydroxypropyl Myristyl Ether is sourced from plant fatty acids and produced without animal by products so it is generally appropriate for both vegans and vegetarians, provided the finished product has no other animal derived ingredients.

Available data shows no issues for women who are pregnant or breastfeeding since the molecule stays on the skin’s surface and is not known to penetrate deeply or reach the bloodstream. This is not medical advice and anyone who is pregnant or nursing should run any skincare product past a doctor just to be on the safe side.

The ingredient does not increase photosensitivity so it can be used day or night but daily sunscreen is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Responses to topical Trihydroxypalmitamidohydroxypropyl Myristyl Ether vary from person to person. The points below cover potential side effects yet they are uncommon for the average user when the ingredient is properly formulated.

  • Mild irritation or stinging most often linked to very sensitive or compromised skin
  • Redness or itching in people with allergies to fatty acid derivatives
  • Temporary clogged pores or comedones if layered with many heavy occlusives on already oily skin
  • Contact dermatitis in rare cases of individual hypersensitivity

If any of these reactions occur discontinue use and consult a healthcare professional for guidance.

Comedogenic Rating

Rating: 1 / 5. Although Trihydroxypalmitamidohydroxypropyl Myristyl Ether is made from fatty acids, its modified structure keeps it lightweight and less likely to pack tightly inside pores. It usually appears at low concentrations, spreads thinly and has a balanced oil-water affinity that discourages pore blockage. This makes it generally suitable for people prone to acne or breakouts when used in well-formulated products. Those with very reactive, highly oily skin might still prefer to monitor how their skin responds, especially if the product also contains heavier occlusives.

Summary

Trihydroxypalmitamidohydroxypropyl Myristyl Ether is a lab refined lipid that conditions skin by restoring surface lipids, softening texture and helping the barrier lock in moisture. It does this by mimicking some of the skin’s own protective fats while remaining stable and easy to blend into creams, serums and masks.

The ingredient is still a niche choice compared with household names like glycerin or hyaluronic acid but its gentle, skin-friendly profile is earning it spots in more barrier repair and sensitive skin formulas.

Current research and real-world use point to a low risk of irritation or pore clogging, so most people can use it without concern. As with any new skincare ingredient it is wise to perform a quick patch test when trying a product that contains it, just to be on the safe side.

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