Ingredient review
Lithium Myristate
INCI: Lithium Myristate
Lithium Myristate is a synthetic thickener that helps give lipsticks and balms a smooth, stable texture, but it has no direct skin benefit and is rarely used in water-based skincare.
In plain English
Lithium Myristate is a man-made ingredient that acts like a thickener or gelling agent. You'll find it mostly in lipsticks and lip balms, where it helps the product hold its shape and feel smooth when applied. It doesn't moisturize or treat the skin—it's purely a texture helper. Because it's not water-soluble, it's only used in oil-based or wax-based formulas.
Review score
Safety, usefulness, and evidence
Useful in the right context, but not low-maintenance
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Read the cautions before using
Lithium Myristate is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Lithium Myristate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Lithium Myristate is the lithium salt of myristic acid, a fatty acid found naturally in nutmeg and palm oils. In cosmetics, it's synthesized to create a waxy solid that thickens and stabilizes oil-based formulas.
How it works
When added to an oil or wax base, Lithium Myristate forms a gel-like network that increases viscosity and gives the product a firm, yet spreadable consistency. It helps prevent separation of oils and pigments, ensuring a uniform application.
Pros
Stable texture
Lithium Myristate helps lipsticks and balms hold their shape and feel smooth, so you get a consistent application every time.
Low irritation risk
It's considered very low in irritation potential, making it safe for most people, even those with sensitive lips.
Cons and cautions
No skin benefit
This ingredient does nothing for your skin—it's only there to improve texture and stability, so it won't hydrate, soothe, or treat.
Limited use
Because it's not water-soluble, you won't find it in serums, moisturizers, or cleansers. It's mostly confined to lip products and anhydrous balms.
Best for
- Anyone using lipsticks or lip balms who wants a stable, smooth texture
- Formulators creating anhydrous stick products
Use caution if
- Those seeking active skincare ingredients with proven benefits
Usage tips
Safety summary
Lithium Myristate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in regulatory reviews.
Research notes
Research on Lithium Myristate is limited to its function as a thickener. No peer-reviewed studies indicate toxicity or skin sensitization at cosmetic use levels. Regulatory bodies like the FDA and CosIng list it as safe.
Common label clues
- Typical concentration
- Usually 1–5% in anhydrous formulas
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no known restrictions at typical concentrations.
- Common uses
- Lipsticks, Lip balms, Anhydrous creams, Stick products
- Environmental note
- Lithium Myristate is synthetic and not biodegradable, but its low concentration in products means minimal environmental impact.
Good to know
- Lithium Myristate is not the same as lithium used in batteries or medications—it's a completely different compound.
- It's often used alongside waxes and oils to create a creamy, non-melting texture in lipsticks.
Common questions
What is Lithium Myristate in beauty products?
Lithium Myristate is a man-made ingredient that acts like a thickener or gelling agent. You'll find it mostly in lipsticks and lip balms, where it helps the product hold its shape and feel smooth when applied. It doesn't moisturize or treat the skin—it's purely a texture helper. Because it's not water-soluble, it's only used in oil-based or wax-based formulas.
What does Lithium Myristate do in a beauty product?
When added to an oil or wax base, Lithium Myristate forms a gel-like network that increases viscosity and gives the product a firm, yet spreadable consistency. It helps prevent separation of oils and pigments, ensuring a uniform application.
Is Lithium Myristate safe for most people?
Lithium Myristate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in regulatory reviews.
Who should be careful with Lithium Myristate?
Those seeking active skincare ingredients with proven benefits
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.