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Skincare Ingredient

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Myristic Acid

In Skincare: Is Myristic Acid Safe? Comedogenic Rating & Side Effects

Comedogenicity (pore clogging)
4/5 — High risk
Safety (overall safety)
2/5 — Low risk
Irritancy (skin irritation)
3/5 — Moderate risk

Overview

Ingredient Profile

Myristic acid is a saturated fatty acid commonly found in coconut oil and other vegetable oils. It functions as a surfactant, helping to cleanse the skin by dissolving dirt and oil while also contributing to foam formation. While effective for cleansing, myristic acid can potentially disrupt the skin's natural moisture barrier in some individuals, which may lead to a feeling of dryness.
Classifications
Cleansing Agent
Occlusive/Opacifying Agent

Data & Research

Scientific Facts

Myristic acid (also known as tetradecanoic acid) is a naturally occurring fatty acid. Salts of myristic acid are produced by reacting it with alkaline materials like sodium or potassium hydroxide. Esters of myristic acid are formed by combining it with alcohols – for instance, Isopropyl Myristate is created from myristic acid and isopropyl alcohol, while Butyl Myristate results from myristic acid and butyl alcohol.

Common Uses

Formulation in Myristic Acid

Myristic acid and its salts/esters are utilized in a range of cosmetic and personal care products, including eye makeup, soaps, detergents, hair care products, nail care products, shaving products, and skin care formulations.

Role of Myristic Acid

Active Cosmetic Mechanisms

FRAGRANCE

Scent Provider

Adds pleasant scent to cosmetic products

SCIENTIFIC ANALYSIS

// Evidence: Fragrance ingredients provide aromatic appeal through essential oils, aroma chemicals, and natural extracts. These volatile compounds interact with olfactory receptors creating scent perception. Fragrance design considers top notes (high volatility), middle notes (moderate volatility), and base notes (low volatility) for scent development over time. Must consider stability, allergen content, and regulatory compliance.

OPACIFYING

Cloudiness Creator

Reduces transparency and adds cloudiness to products

SCIENTIFIC ANALYSIS

// Evidence: Opacifying ingredients make formulations less clear through light scattering. These include titanium dioxide, zinc oxide, fatty alcohols, glycol stearates, and styrene/acrylates copolymer. The mechanism involves particles or crystalline structures that scatter light, reducing transmission and creating pearl-like or milky appearance. Particle size and refractive index determine degree of opacity. Used for aesthetic appeal and to mask colored ingredients.

PERFUMING

Fragrance Provider

Provides fragrance to enhance product appeal

SCIENTIFIC ANALYSIS

// Evidence: Perfuming ingredients add pleasant scents through complex mixtures of natural essential oils, aroma chemicals, and synthetic compounds. These volatile molecules evaporate and interact with olfactory receptors. Perfume construction uses top notes (citrus, herbs - high volatility), middle notes (floral, spice - moderate volatility), and base notes (woods, musks - low volatility) creating evolving scent profile. Must consider stability, allergen declaration, and IFRA compliance.

SURFACTANT - CLEANSING

Cleansing Surfactant

Removes dirt and oil through surfactant action

SCIENTIFIC ANALYSIS

// Evidence: Cleansing surfactants specifically formulated for removing sebum, dirt, and impurities. Primarily anionic (sodium laureth sulfate, sodium cocoyl isethionate) and amphoteric surfactants (betaines). Mechanism involves reducing surface tension enabling water to wet oily surfaces, solubilizing lipophilic materials in micelles, and emulsifying oils for rinse-off. Cleansing efficacy balanced with mildness by surfactant selection, concentration, and pH optimization. Must avoid excessive lipid removal that compromises barrier function.

Products

containing Myristic Acid

2495 formulations
Olive Real Cleansing Foam
Olive Real Cleansing Foam
innisfree · cleanser
3 in 1 Repair Hand Cream
3 in 1 Repair Hand Cream
Nivea · body-skincare
Rénergie Lift Multi-Action Eye
Rénergie Lift Multi-Action Eye
Lancôme · eye-lip-care

References

Scientific sources

[1]

CosmeticsInfo.org, Accessed March 2021, ePublication

[2]

RSC Advances, July 2020, ePublication

[3]

International Journal of Toxicology, December 2019, pages 162S-186S

Semantic Analysis

Similar Ingredients

Ingredients with similar chemical profiles and skincare properties.

Frequently Asked Questions

Myristic Acid — common questions

What is Myristic Acid in skincare?

Myristic acid is a naturally occurring fatty acid found in foods like nutmeg, palm oil, coconut oil, and butter fat. It exists as a hard, white or faintly yellow crystalline solid or powder. It's also used in cosmetics and personal care products as various salts (such as Aluminum Dimyristate, Sodium Myristate) and esters (such as Butyl Myristate, Cetyl Myristate), which are created through reactions with bases and combining with alcohols.

What does Myristic Acid do? / Functions of Myristic Acid?

Common functions: FRAGRANCE, OPACIFYING, PERFUMING, SURFACTANT - CLEANSING.

What is the comedogenic rating of Myristic Acid? / Is Myristic Acid comedogenic?
4 4/5 — High risk

Myristic Acid has a comedogenic rating of 4 out of 5. This ingredient appears to be comedogenic. A rating of 4 means it has high pore-clogging potential.

Does it clog pores?
Likely to Clog Pores

This ingredient appears to be comedogenic (rating 4/5).

Is Myristic Acid safe for skin?
2 2/5 — Low risk

Myristic Acid has a safety rating of 2 out of 5. A rating of 2 means it is generally considered safe for most skin types.

Is Myristic Acid good for sensitive skin?
3 3/5 — Moderate risk

Myristic Acid has an irritancy rating of 3 out of 5. A rating of 3 means it may cause mild irritation for some.

What are the side effects of Myristic Acid in skincare?

Potential side effects include skin irritation (irritancy rating 3/5) and potential pore-clogging (comedogenic rating 4/5).

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