Brows & lashes

Tinting your own eyelashes: what is and is not suitable at home

By Rocío Furger · Published August 24, 2026 · Updated August 26, 2026

At-home lash tinting is limited in Switzerland: every oxidative lash colour and matching developer must be labelled “for professional use only”. This guide explains what remains possible, what can go wrong around the eye, what an eyelash serum can realistically do, and how tinting, lifting and extensions differ.

What lash tinting is actually suitable at home

At-home options are those that do not use oxidative colour: mascara, eyeliner at the lash line or a silver-nitrate-based tint described below. Permanent oxidative tinting like the salon service requires colour and developer, both restricted in Switzerland to professional use. This is not a trade rule; it comes from Annex III of the EU Cosmetics Regulation, which Swiss law makes applicable.

Why lash tint is regulated more strictly than hair dye

Switzerland now has little separate ingredient law for cosmetics and no Swiss exception for lash products. Article 54 of the Foodstuffs and Utility Articles Ordinance refers to the current annexes of the EU Cosmetics Regulation. The substance rules that apply in Brussels therefore also apply on Zürichstrasse.

Annex III lists substances permitted only under conditions. P-phenylenediamine (PPD) may be present in lash-tint products at up to two per cent after mixing, with the words “for professional use only”. The same restriction applies to almost a dozen other oxidative dyes and to developer: hydrogen peroxide is permitted in lash products up to two per cent, also only for professional use. The law provides no oxidative bathroom tinting kit for consumers.

The claim that “PPD is prohibited around the eye” is also inaccurate. What is prohibited is using consumer hair dye contrary to the compulsory warning not to use it on eyelashes or eyebrows. Bringing a drugstore hair-dye tube to the eye does exactly what its label warns against.

One dye is treated differently. Silver nitrate at up to four per cent is specifically permitted “only for colouring eyelashes and eyebrows” without a professional-use restriction. It is the one route provided for self-application, using a different method and producing a different result from oxidative salon tint. Its packaging must still warn users to rinse the eyes immediately if product enters them.

Professional lash colours carry the same warnings: the product can cause severe allergic reactions; it is not intended for people under 16; and eyes must be rinsed immediately after contact. We therefore ask about previous reactions to hair or lash colour before a first appointment.

What can go wrong around the eye

Colour in the eye

In a salon, closed lids rest on protective pads while a second person controls the brush. Someone tinting her own closed lashes has neither that second hand nor a view of the work. The EU Scientific Committee on Consumer Safety (SCCS) states that non-professional use creates more contact between colour, eye and eyelid.

An allergy that was not visible beforehand

The SCCS classifies four dyes used in permanent lash colours as extremely strong and eight as strong sensitisers. PPD is in the first group. Contact allergy usually does not appear on first exposure but develops later, including in someone who tolerated the same product for years. A previous hair-dye reaction increases the concern.

Severe eyelid eczema after tinting is documented in case reports, but frequency is unknown. One manufacturer reported a single case, eye irritation after incorrect use, among 800,000 units sold over two years. The SCCS explicitly questions how informative such reports are. Its mandate estimated more than ten million professional applications a year in Germany and Austria alone.

An uneven line

This is the common and harmless problem. Lashes are darker at the root than the tip. Uneven application or early removal leaves a patchy line. It cannot be corrected immediately and must grow out. Before-and-after images are particularly misleading here if angle, lighting or mascara changes.

Patch testing before tinting

Many salons describe a patch test as compulsory. It is not: neither the regulation nor its annexes require one. They set exclusions: no tinting with a facial rash, irritated or injured skin, a previous reaction to hair or lash dye, or a reaction to a temporary black-henna tattoo; and no use under age 16.

Whether the test delivers what it promises remains disputed. A 2018 study involving several cosmetics manufacturers found that around nine in ten people known to be allergic to PPD developed a self-recognisable reaction. An independent group of European contact- allergy specialists had earlier said the same test was unvalidated, studied in the wrong population and might itself sensitise. Legislators have not endorsed either position.

We nevertheless offer a test at the inner elbow 24 hours before the appointment. Mention it when enquiring so we can schedule it. We do not claim that a negative result rules out a reaction.

Why we advise against a home lash lift

Home kits are sold. We advise against them because of the working position rather than commercial self-interest.

Which chemicals are used

A lift breaks and resets bonds in the hair, the same principle as a perm. The active is thioglycolic acid, permitted for lash-waving products since August 2015 at up to 11 per cent in a ready-to-use pH range of 7 to 9.5 and labelled “for professional use only”. The regulation itself gives the reason: the scientific committee assessed it as safe only when applied by a professional because self-application poses an eye-irritation risk.

Why processing time is the central problem

The lotion sits millimetres from the eye on the lid margin while the eye remains closed, so a person treating herself cannot see what is happening. Processing time depends on hair structure rather than the clock: a fine lash needs substantially less time than a coarse one. During professional treatment, we lift a lash from the pad to check progress. Alone at a mirror, overprocessing may only become apparent once the lash is porous.

Professional treatment is not risk-free; the same safety assessment makes that clear. It is, however, controlled. Process and prices are on the lash-lift page: CHF 89 for 50 minutes, or CHF 99 including tint.

Eyelash serum: what is in the tube

Two product groups can look identical on the shelf while acting very differently.

Prostaglandin analogues are medicines, not cosmetic ingredients

Prostaglandins were developed for elevated pressure inside the eye. Longer, thicker and darker lashes appeared as a side effect of glaucoma treatment: the active moves resting follicles back into the growth phase.

In Switzerland, bimatoprost and latanoprost are authorised only as prescription eye drops. No Swiss-authorised product has a lash-growth indication, and the American product Latisse is not marketed here. A cosmetic that acts pharmacologically is legally an unauthorised medicinal product rather than a cosmetic.

A German authority tested 17 lash serums and objected to more than half; four were classified as medicines because of prostaglandin activity. In February 2026, the SCCS assessed three such substances for cosmetic lash products and concluded that none could be considered safe. A formal ban had not been enacted when this article was researched. Claims that all such serums have been prohibited since 2026 are therefore not supported by the regulation's annexes as they then stood.

The authorised US product information lists possible effects including permanent iris darkening, eyelid-skin darkening that usually reverses after stopping, hair growth where liquid spreads, eye inflammation and reduced intraocular pressure that can distort glaucoma monitoring. Post-authorisation reports added loss of fat around the eye.

Two different numbers are often confused: rates around 90 per cent come from glaucoma therapy using drops in the eye, not serum at the lid margin. In the approval trial of the lash product, the most common adverse effects each occurred in fewer than four per cent.

Non-prescription peptide serums

The other group contains peptides, panthenol, hyaluronic acid or plant extracts and does not act pharmacologically. That is both its advantage and its limit.

Evidence is thin. The only clinical study we found was open, uncontrolled, involved 30 women and included the manufacturer. After twelve weeks, lashes were on average 8.3 per cent longer. Without a control group, the result cannot be separated from normal lash turnover. It is a signal, not proof of effectiveness.

What you can realistically expect

The only longitudinal measurement we found gives lashes a growth phase of around 34 days, a complete cycle of around 90 days and growth of about 0.12 millimetres per day. The common beauty-copy claim of a four-to-eleven-month cycle could not be traced to a primary study. An individual lash therefore lives for roughly three months; because lashes change asynchronously, a whole-lash-line result from colour or lifting can still visibly decline after six to eight weeks.

A serum can only act on lashes currently growing. A visible difference needs at least a full cycle and recedes after stopping. Beauty Rocío sells no skincare products or serum, so we have no product sale at stake.

Magnetic lashes, strip lashes and extensions

• Magnetic lashes are not suitable for MRI. Measurements of six brands in a 3-tesla scanner found deflection angles far above the safety threshold. Remove them before an MRI. We found no robust tolerability data for magnetic eyeliner at the lid margin.
• Strip lashes depend on the adhesive. Read the ingredients before applying anything to the lid margin, where skin is particularly thin.
• Extensions belong in a salon. In a Japanese series of 107 patients, conjunctival and corneal inflammation from adhesive entering the eye came first, followed by allergic eyelid inflammation. The guide to nine subjects an extension course must cover explains what serious training includes.

One figure is often misquoted. A claim that extensions cause allergic lid inflammation in 79 per cent of treatments misreads the data: the percentage describes the distribution among published complication cases, not incidence per treatment.

Tinting, lifting or extensions: the difference

The three services are often grouped together, but they do different things.

Combinations can make more sense than separate steps. Lifting and tinting in one visit costs CHF 99 rather than CHF 89 plus CHF 25 separately. Lashes and brows tinted together cost CHF 45. For moving from extensions back to natural lashes, the extensions page lists new sets, infills and removal. We dissolve adhesive with gel for CHF 35 and never tweeze extensions off.

The same logic applies to brows in the guide to brow shape, tint and care and on the eyebrow-lamination page. For a permanent dark line along the lid, see permanent eyeliner.

When an eye doctor should assess a problem

A beautician does not diagnose. Around the eye, that boundary is especially close:

• Persistent redness, pain or blurred vision after tint, lifting or adhesive contact needs same-day medical assessment. Rinse the eye thoroughly with water first.
• A swollen, weeping eyelid that has not improved after two days also needs assessment.
• Unexplained lash loss or bald areas at the lid margin should be assessed medically; serum is not an answer.
• Anyone using eye drops for raised intraocular pressure should discuss lash products with an ophthalmologist, not with us.

If the eye is irritated on the appointment day, we do not treat it and will reschedule.

Sources & review date

• Swiss Federal Food Safety and Veterinary Office: regulated substances in cosmetics
• EU Scientific Committee on Consumer Safety: prostaglandin analogues in lash and brow products
• Prospective study of eyelash extensions and the ocular surface
• Clinical case series of eye disorders caused by eyelash extensions

Sources reviewed: 24 August 2026.

Frequently asked questions

Can I tint my own eyelashes?

Only to a limited extent. Oxidative lash colour and developer are restricted to professional use in Switzerland, while ordinary hair dye must warn against use on eyelashes and brows. At-home options include mascara or an appropriate silver-nitrate tint. Salon tinting costs CHF 25.

Do lashes look longer after tinting?

No. Tinting creates a clearer lash line, not additional length. Colour remains until the lash sheds. If an image suddenly shows much longer lashes, lifting, extensions, camera angle or mascara may explain it.

Can I perform a lash lift at home?

Kits are sold, but we advise against them. Thioglycolic acid is used directly at the lid margin while the eye is closed and the person cannot see her own progress. Its permitted use in lash-waving products is expressly limited to professional application because self-use risks eye irritation.

Which eyelash serum is best in tests?

We name none. We know of no independent comparison on which to rely and sell no serum. More important is whether a prostaglandin analogue is present: such ingredients act pharmacologically and do not belong in an ordinary cosmetic.

Are magnetic lashes safe?

They avoid adhesive but not every risk. Magnetic lashes were strongly deflected in a 3-tesla scanner and must be removed before MRI. We found no robust evidence on tolerability of magnetic eyeliner at the lid margin.

How are eyelash extensions removed?

With a gel that dissolves the adhesive, not by pulling. Do not remove extensions yourself by tweezing: natural lashes can be pulled out with them and a gap takes a complete cycle to fill.

Is a lash lift the same as an eyelash perm?

The principle is the same; “eyelash perm” is the older term. Both reshape hair using thioglycolic acid. A modern lift raises lashes from the root over a silicone pad rather than curling them tightly, so the result looks straighter.

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