Eyes, Lashes & Brows
Thin Eyelashes: causes & the ingredients that actually work
Short, sparse lashes you want fuller and longer. Below we explain what causes it, which ingredients have real evidence behind them, and the products we recommend (top picks are being added soon).
Premium & budget picks for thin eyelashes — coming soon
We're reviewing formulas and ingredient lists for this concern. Until then, look for products built around Peptides, Castor Oil and Biotin.
Understand it
What causes thin eyelashes?
- Genetics
- Heavy mascara and rubbing
- Ageing
Look for
Ingredients that work for thin eyelashes
- Peptides
Amino-acid chains that signal skin to produce collagen for firmness.
- Castor Oil
Thick, ricinoleic-acid-rich oil used to condition lashes, brows and hair.
- Biotin
B-vitamin involved in keratin production; helps hair and nails when levels are low.
- Panthenol (Pro-Vitamin B5)
Hydrates and soothes skin and hair; improves elasticity and shine.
FAQs
Thin Eyelashes — common questions
What causes thin eyelashes?
Common causes include: genetics, heavy mascara and rubbing and ageing.
Which ingredients work best for thin eyelashes?
Look for Peptides, Castor Oil, Biotin and Panthenol. Peptides: Amino-acid chains that signal skin to produce collagen for firmness. Castor Oil: Thick, ricinoleic-acid-rich oil used to condition lashes, brows and hair.
When should I see a dermatologist for thin eyelashes?
If it is severe, painful, spreading, or hasn't improved after 6–8 weeks of consistent care, see a board-certified dermatologist. Prescription treatments may be needed.
This guide is for general information and isn't a substitute for advice from a dermatologist. Patch-test new products, and avoid strong actives during pregnancy unless your doctor approves.