What Is Myristic/Palmitic/Stearic/Ricinoleic/Eicosanedioic Glycerides?
Myristic/Palmitic/Stearic/Ricinoleic/Eicosanedioic Glycerides is a blend of mono, di and triglycerides that come from five fatty acids: myristic, palmitic, stearic, ricinoleic and eicosanedioic. These fatty acids are usually sourced from plant oils such as coconut, castor, or palm. Once the oils are collected, they undergo a process called interesterification, where the fatty acids are separated then reattached to glycerin in specific proportions. The result is a creamy, skin friendly ingredient that glides onto hair and skin without feeling heavy.
Glycerides like these gained popularity in cosmetics in the late twentieth century when formulators looked for alternatives to pure mineral oil. The mix of short and long chain fatty acids offers a balance of quick absorption and lasting softness, making it a staple in modern personal care. You will often spot it in moisturizers, leave-in hair conditioners, rich body creams, face masks, anti-aging serums and styling products that promise smoothness and shine.
Myristic/Palmitic/Stearic/Ricinoleic/Eicosanedioic Glycerides’s Cosmetic Benefits/Uses
This multifunctional blend improves both feel and performance in a wide range of formulas.
- Hair Conditioning: Coats the hair shaft with a light, non-greasy film that reduces frizz, boosts shine and makes detangling easier. It also helps lock in moisture so strands stay soft throughout the day
- Skin Conditioning: Forms a protective barrier that slows water loss, leaving skin feeling supple and smooth. Its mix of fatty acids mimics those found naturally in skin which supports a healthy looking complexion
Who Can Use Myristic/Palmitic/Stearic/Ricinoleic/Eicosanedioic Glycerides
This glyceride blend is generally considered suitable for most skin types, including normal, dry, sensitive and mature skin because it helps reinforce the skin’s natural barrier without leaving a heavy residue. Those with very oily or acne-prone skin may want to monitor how their skin responds, as some of the fatty acids in the mix can be moderately comedogenic and might contribute to clogged pores if used in high concentrations.
The ingredient is typically sourced from plant oils so it is vegan and vegetarian friendly provided the finished product has not been tested on animals and the brand adheres to cruelty-free standards.
No specific warnings have been issued for pregnant or breastfeeding women. As a general rule this is not medical advice and anyone who is pregnant or nursing should show the full ingredient list of any cosmetic product to their healthcare professional before use.
Myristic/Palmitic/Stearic/Ricinoleic/Eicosanedioic Glycerides does not make skin more sensitive to sunlight and can be used both day and night without increasing the risk of sunburn. It also plays well with other common skincare actives such as retinol and vitamin C so no special layering precautions are needed.
Potential Side Effects/Adverse Reactions
Side effects and reactions to the topical application of Myristic/Palmitic/Stearic/Ricinoleic/Eicosanedioic Glycerides can vary from person to person. The following is a list of potential side effects and interactions, though they are unlikely for most users when the ingredient is formulated and used correctly.
- Clogged pores or breakouts in individuals who are highly acne-prone, especially if the formula is very rich or applied in thick layers
- Mild skin irritation such as redness or itching in those with hypersensitive skin or a specific fatty acid allergy
- Contact dermatitis in rare cases where the user is allergic to one of the fatty acids in the blend
- Hair greasiness or buildup when used in leave-in products on very fine hair that is easily weighed down
If any irritation, breakout or other unexpected reaction occurs stop using the product and consult a qualified healthcare professional or dermatologist.
Comedogenic Rating
2 out of 5. The blend contains myristic and palmitic acids which on their own can sit around a 3 to 4, but they are diluted by lower scoring stearic and ricinoleic acids and are bonded to glycerin, lowering their tendency to clog pores. In most leave-on or rinse-off formulas the concentration is not high enough to trigger widespread breakouts, yet very oily or congestion-prone skin might still notice an occasional bump if the product is heavy. Overall it is usually tolerable for acne-prone users though lighter textures are the safer bet. Formulation quality, the total oil phase and how often the product is reapplied will influence the real-world risk.
Summary
Myristic/Palmitic/Stearic/Ricinoleic/Eicosanedioic Glycerides conditions skin and hair by forming a thin, breathable film that slows water loss, smooths texture and adds a soft sheen. Its mix of short and long chain fatty acids absorbs quickly yet leaves behind enough richness to keep strands and skin comfortable for hours. While it is not a headline ingredient like hyaluronic acid or shea butter, formulators value it as a workhorse emollient that boosts slip and spreadability without feeling greasy.
Safety profiles from industry and regulatory bodies place it in the low-risk category when used in typical cosmetic amounts. Most people can enjoy products containing this glyceride blend with no issues, but trying a small patch first is always a smart move to rule out individual sensitivities.