L-Carnitine

L-Carnitine is an amino acid derivative naturally involved in fatty acid metabolism.

In cosmetics, it is mainly used in products targeting oily skin, cellulite appearance, scalp care, and body contouring.

Functions of L-Carnitine in Cosmetics

1. Sebum Regulation

L-Carnitine helps reduce excess oil production by encouraging the transport of fatty acids into mitochondria for energy metabolism.
Commonly used in:

• Oily skin serums
• Acne treatments
• Mattifying moisturizers
• Scalp treatments for oily hair

Typical use level:
0.5–3%

2. Anti-Cellulite and Slimming Products

It is popular in:

• Body gels
• Firming creams
• Massage lotions

This is because it supports lipid metabolism and may improve the appearance of cellulite and skin firmness when combined with massage and caffeine.
Often combined with:

• Caffeine
• Theophylline
• Centella asiatica
• Escin

Typical use level:
1–5%