Levocarnitine

LEV

8/10

Concern level

High concern

Levocarnitine (L-carnitine) is a naturally occurring quaternary ammonium compound involved in fatty-acid transport and energy metabolism. In cosmetics, it is mainly used as a skin-conditioning, sebum-modulating, and acne-supportive ingredient; recent dermatology literature reports topical use in the 1%–5% range for reducing sebum and acne lesion counts. ([pubchem.ncbi.nlm.nih.gov](https://pubchem.ncbi.nlm.nih.gov/compound/10917?utm_source=openai))

Pore-clogging

Non-comedogenic

Pregnancy

Safe

Regulatory

No data

Benefits

Controls Oil ProductionAcne-fighting

Chemical Properties

Molecular Weight

161.2 g/mol

Typical Concentration

1.00% - 5.00%

CAS Number: 541-15-1

Skin Type Compatibility

dry skin5/10

oily skin9/10

sensitive skin6/10

acne prone9/10

mature skin5/10

normal skin8/10

Interactions

incompatible with: No well-established topical ingredient conflicts are documented for cosmetic use; the main caution is formula-level irritation when paired with multiple strong actives., Use extra care when combining with highly exfoliating or sensitizing products if your skin barrier is compromised.

Risks & Warnings

Generally well tolerated topically, but any leave-on active can cause mild irritation or stinging in very sensitive skin. Evidence for cosmetic use is still limited compared with better-studied actives, so product performance and tolerability depend on the full formula. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/41879202/?fc=None&ff=20260325220253&v=2.19.0.post6+133c1fe&utm_source=openai))

Vegan Cruelty-Free

Found In Products

The Ordinary