










Want longer, denser, fuller lashes — naturally?
Our serum was tested in an accredited laboratory, under ophthalmological control, and contains neither prostaglandin nor growth hormone. Its formula combines three peptides with vitamins and nourishing actives to care for the lash line and support healthier growth, from the root.
Biotin and panthenol nourish and soften the lash fibre. Keratin and rice proteins strengthen it to help limit breakage. Hyaluronic acid and castor oil keep lashes supple and hydrated through to the tip.
With daily use, lashes look visibly longer, fuller and better defined — an intense look, without extensions or false lashes.
100% very well tolerated in clinical study. Suitable for sensitive eyes, contact-lens wearers, and lashes weakened by extensions.
Prepare On a perfectly make-up-free and dry eyelid.
Apply Draw a thin line at the root of the upper lashes, like an eyeliner. You can do the same on the lower lashes.
Let dry Let it dry for a few seconds.
Repeat Once a day, at a time that suits you.
If you wear contact lenses Remove them before applying and wait 15 minutes before putting them back in.
Stay consistent First results from 3 weeks. Consistency matters more than quantity.
INCI: Aqua, Sodium Hyaluronate, Biotin, Biotinoyl Tripeptide-1, Myristoyl Pentapeptide-17, Panax Quinquefolius Root Extract, Panthenol, Pentylene Glycol, Swertia Japonica Extract, Acorus Calamus Root Extract, Arginine, Cucurbita Pepo Seed Extract, Hydrolyzed Rice Protein, Oligopeptide-10, Ricinus Communis Root Extract, Serenoa Serrulata Fruit Extract, Tocopherol, Hydrolyzed Keratin, Maltodextrin, Rosmarinus Officinalis Extract, Butylene Glycol, Ethylhexylglycerin, Phenoxyethanol.
No growth hormone, no prostaglandin, no added fragrance.
For external use only. Avoid direct contact with the eye; if contact occurs, rinse thoroughly with clean water. Do not apply on an irritated or damaged eyelid. Keep out of reach of children. If a reaction occurs, stop using the product and consult a healthcare professional.
+ 30,000 customers · 4.8/5
100/100 on Yuka
100% very well tolerated · 0 reaction
No hormone or prostaglandin
Ophthalmologist-tested



Castor oil

Biotin

Rosemary

Rice protein

Ginseng root

Keratin

Daily makeup, waterproof mascaras, repeated rubbing when you remove makeup and costly extensions all weaken the lash follicles. With age, lashes thin, lose curl and density, and dryness sets in. False lashes hide the problem; they never solve it. Only a true growth serum, rich in effective actives, treats the cause.
When follicles get the right nutrients, they recover their vitality — and tothelash serum is formulated for exactly that.
The formula draws on phytotherapy, without controversial hormonal compounds. Where some serums rely on prostaglandins to force growth, tothelash uses naturally derived actives that respect the lash line.
Keratin, the structural protein of lashes, is supported by biomimetic peptides that strengthen the lash shaft and help resist breakage. Castor oil nourishes from root to tip. Biotin (vitamin B8) supports keratin production. Panthenol (vitamin B5) hydrates the lash base. Rosemary extract supports microcirculation around the follicles. Hydrolyzed rice proteins help lashes resist daily mechanical stress. Ginseng root helps support the growth phase.
Results depend as much on consistency as on the formula. Remove makeup gently with a soft pad and micellar water — pat, do not rub. On a clean, fully dry eyelid, draw the serum at the root of the upper lashes with the built-in brush, like a precise eyeliner line. One drop is enough for both eyes. Leave it on overnight so follicles can absorb the actives while you sleep.
If you wear contact lenses, remove them first and wait at least 15 minutes before putting them back in. The serum can also be used in the morning after your skincare routine.
From the first two weeks, lashes feel stronger, natural curl looks more defined and the lash line denser. At one month of regular use, length is visibly improved. At three months — a full lash cycle — results are at their peak: thicker, longer, naturally curled lashes. Unlike hormonal serums, stopping tothelash does not shock the lash cycle; results fade gradually.

This item is currently out of stock. Join the waiting list to be notified when it's back.