If your lashes look shorter, break easily or seem less full, start with simple steps: remove make-up without rubbing, avoid pulling extensions and pause treatments that cause discomfort. A serum may improve the appearance of the lash shaft, but it cannot explain why your lashes are thinning. See a doctor if loss is sudden, increasing or leaving gaps.
Pain inside the eye, changes in vision or a very red eye need urgent assessment. Do not wait for your next salon appointment. This guide helps you navigate cosmetic care and product labels; it does not replace an examination.
Last substantive update and source check: 23 September 2026.
Fragile or thinning eyelashes: where to start
Fragility describes the appearance of the shaft: short, bent or uneven lashes. Thinning means reduced apparent coverage. A short lash may also be growing: a photograph alone cannot distinguish breakage, shedding and the growth phase.
What a lash professional can observe
For the lash professional
The lash professional describes and records lengths, distribution, residue and reported symptoms. They do not attribute the change to deficiencies, hormones, allergies or disease, or promise regrowth by a set date.
Postpone the service if the natural lashes cannot support it. Read about extension weight, tension and warning signs.
Comparing changes over time
Compare photographs without mascara, using similar lighting, angle and distance. Note whether the change affects one or both eyes and when you first noticed it. Do not pull or manipulate lashes to test their strength.
Why appearance cannot explain the cause
Different causes can produce a similar appearance and may need clinical assessment. A change after a cosmetic or treatment is useful information, but timing alone does not establish the cause. To understand normal turnover, read the natural eyelash growth-cycle guide.
Daily care: reduce friction and pulling
Use a remover intended for the eye area and compatible with any extensions. Let it dissolve make-up before removing it with gentle movements.
Avoid rubbing, tugging, forceful brushing and removing extensions with your fingers.
Do not share mascara or applicators, dilute dried products with water or saliva, or ignore storage instructions.
Stop using a cosmetic that irritates. Avoid make-up on the inflamed area and seek assessment if symptoms persist.
These hygiene and irritation precautions are also described in the FDA guidance on eye cosmetic safety.
Mascara, eyelash curlers and castor oil
Long-wear mascara needs suitable removal: repeated rubbing adds pulling forces. Use an eyelash curler without tugging and pause its use if lashes are already very uneven. Castor oil should not be presented as a proven lash-regrowth treatment. Use only products intended for the eye area near your eyes.
Lash serums: reading claims and labels
The word serum does not guarantee growth. A cosmetic may condition the shaft and improve softness or appearance; this does not treat the cause of lash loss. Check the INCI list, intended area, warnings, frequency, period after opening and the business responsible for the product.
Peptides and panthenol: what you can infer
Peptides, panthenol and humectants appear in many formulas. A 2024 scientific review of eyelash serums describes limited evidence for non-prostaglandin ingredients. An ingredient name does not establish the efficacy of the finished product: the whole formula, concentrations and relevant testing matter.
Do not combine serums or increase applications to speed up results. A negative patch test cannot exclude later reactions or different tolerance on the eyelid. Follow the intended use and stop the cosmetic if symptoms develop.
Prostaglandins in the INCI: three names assessed by the SCCS
Use this table to recognise names on a label. It is not a complete list of possible analogues and does not certify a serum’s safety.
Name to look for in the INCI | Reference in the opinion |
|---|---|
Isopropyl Cloprostenate | IPCP |
Methylamido-Dihydro-Noralfaprostal | MDN |
Dechloro Dihydroxy Difluoro Ethylcloprostenolamide | DDDE; also referred to as Ethyl Tafluprostamide |
The final SCCS opinion SCCS/1680/25, adopted on 2 February 2026 and published on 10 February, concludes that none of the three assessed analogues can be considered safe for the evaluated cosmetic use intended to promote eyelash and eyebrow growth.
This is a scientific opinion, not a legal ban in itself. Any restrictions or prohibitions must be checked in the applicable legislation and annexes to EU Cosmetics Regulation (EC) 1223/2009; start with the European Commission’s cosmetics legislation page. A product being on sale does not overturn the scientific conclusion. Outside the EU, check the rules and product classification in your country.
If you recognise one of these names in a cosmetic serum, avoid continuing to use it for lash growth and ask a doctor or pharmacist for advice, bringing the packaging. Do not try to find a safe dose by reducing the amount or frequency yourself. This does not mean stopping prescribed medicines.
Lash-growth medicines: decisions to discuss with a doctor
Bimatoprost is a medicinal active ingredient: for example, Lumigan is a prescription eye medicine in the EU. Do not turn glaucoma eye drops into a cosmetic lash serum or change prescribed treatment without your doctor. Approved uses and prescribing rules vary by country.
Supplements and biotin: assess the need first
Do not assume a deficiency from how your lashes look. Whether a supplement is needed, and whether it may interfere with treatment or tests, should be assessed by a healthcare professional.
For the lash professional
Do not recommend medicines, off-label uses or supplements to correct thinning. Direct medication questions to the prescriber and limit the beauty assessment to whether a cosmetic service is appropriate.
When to pause extensions or lash lifts
There is no universal four-, six- or eight-week break. If lashes are very uneven, loss increases or a treatment causes discomfort, pause new applications and clarify the situation before resuming. A break reduces further exposure but does not guarantee recovery of density.
Existing extensions: leave, reduce or remove?
Do not pull, cut or detach extensions at home. Ask for professional assessment; if you have eye symptoms, medical advice comes first. A fuller infill does not resolve fragility.
For the lash professional
Assess isolation, weight and direction on each available natural lash. Do not add load to an unsuitable base. See professional extension removal and the limits of lash-lift corrections.
Useful photographs and a timeline
For the lash professional
Record when the change began, products, treatments, reported symptoms and the decision made. Authorised photographs need comparable conditions. Use the lash client record without making a diagnosis.
Before resuming treatment
For the lash professional
Distinguish previously treated shafts from visible new growth and assess each lash. Resuming requires a suitable base, comfort and stability; elapsed weeks alone are not enough. Revisit consultation and stop criteria and cleansing and aftercare.
Explaining a postponed service
For the lash professional
Explain what you can observe, why adding load or another chemical process is inappropriate, and what needs to be clarified before a new appointment. Do not promise that a break will make the lashes grow back.
When to see a doctor, dermatologist or eye-care professional
Arrange an assessment if thinning is sudden, progressive, patchy or markedly uneven between eyes, or also affects eyebrows or scalp hair. A doctor can advise whether dermatology assessment is needed. Persistent eyelid itching, crusts, discharge or swelling warrant medical or eye-care assessment; do not automatically treat them as glue or make-up residue.
The NHS information on blepharitis explains why these symptoms need assessment rather than self-diagnosis.
Eye symptoms that need urgent attention
Seek urgent assessment for pain inside the eye, changed vision, marked light sensitivity or a very red eye. A red eye while wearing contact lenses needs prompt assessment. For an eye injury or a chemical in the eye, use your local emergency pathway immediately and follow the relevant first-aid instructions; do not wait for the salon.
These warning signs are described in the NHS red-eye guidance. The NHS describes UK care pathways; elsewhere use the equivalent urgent or emergency service in your country.
Case studies: lashes, lash lifts, serums and documentation
In these four cases, start with what is visible, collect the missing information and separate observations from the decision about the next service.
Case study 1: shorter lashes after extensions
Open the full-resolution image (new tab)Describe the change in appearance: different lengths, fan uniformity and any areas with less coverage. Seeing shorter lashes after removal does not, by itself, prove that extensions damaged them.
Reconstruct when and how the extensions were removed, whether you pulled or rubbed the lashes, and whether there was discomfort. Reduce rubbing during make-up removal and do not immediately compensate with a heavier set. If loss increases or symptoms develop, follow the guidance above on when to see a doctor.
For the lash professional
Record the observed distribution and lengths, timeline and reported symptoms. Compare with earlier photographs if available, and assess the natural lashes before proposing the next service.
Case study 2: bent tips after a lash lift
Open the full-resolution image (new tab)The circles and arrows highlight irregular directions and tips. Shape alone cannot reveal which products, processing times or technique were used.
Note when the treatment was performed, how you cared for your lashes at home, and whether you experienced sensitivity, burning or other symptoms. Do not automatically repeat the lash lift to straighten them; assess the situation before any further application.
For the lash professional
Collect the system, products, batch numbers and timing where available. Document the shafts and postpone corrections if the base is unsuitable. Eye symptoms make clinical assessment the priority.
Case study 3: evaluating a lash serum label
Open the full-resolution image (new tab)The image separates four elements: marketing claim, INCI list, directions and warnings. ‘Stronger, better-conditioned lashes’ is a product claim; assessing it requires evidence relevant to the stated effect.
INCI shown in the image: Aqua, Glycerin, Panthenol, Hydrolyzed Keratin, Biotinoyl Tripeptide-1, Sodium Hyaluronate, Phenoxyethanol, Ethylhexylglycerin.
You can recognise the names and their order, but the list does not give exact percentages or prove regrowth. None of the three analogues in the SCCS table appears in the list shown; this does not establish overall safety. The directions shown belong to the represented packaging: follow the instructions on your own serum.
Comparing a second INCI list: the manufacturer’s source
For a separate label-reading comparison, consider the ingredient list for The Ordinary Multi-Peptide Lash and Brow Serum, published by the manufacturer for the UK market and accessed on 23 September 2026. This is an ingredient-reading exercise, not a purchase recommendation.
Names in the published list | What the list tells you |
|---|---|
Aqua (Water), Glycerin, Butylene Glycol | These are the first three declared ingredients. Their position does not reveal exact percentages. |
Myristoyl Pentapeptide-17, Biotinoyl Tripeptide-1, Oligopeptide-2, Acetyl Tetrapeptide-3 | These four peptides are listed. Their presence alone does not prove clinical lash growth. |
Panthenol | It is declared, but the list does not establish its concentration or the finished product’s performance. |
The published list does not include the three names in the SCCS table. This comparison does not certify overall safety. The manufacturer notes that formulas can vary by time and market, so check your own packaging. For the full method, read how to read and check a cosmetic INCI list.
If the label includes a prostaglandin analogue
Suppose you find Isopropyl Cloprostenate in the INCI. Recognise it as one of the three assessed analogues and read the SCCS conclusion above. Keep the label and batch details and seek advice; a position near the end of the list is not a safety guarantee, and less frequent application is not an established solution.
Case study 4: documenting lashes over time
Open the full-resolution image (new tab)The image brings together two photographs and a record with dates and notes. Before comparing, check lighting, angle, distance, focus and the absence of mascara; also account for extensions being present or removed. Different conditions can change apparent coverage. The dates in the supplied record use day/month/year.
Separate what you observe from what is reported: ‘better uniformity’ describes appearance, while ‘the client reports fuller lashes’ records a perception. Neither note, on its own, measures regrowth or demonstrates a serum’s or treatment’s effectiveness.
For the lash professional
Record the date, service, products, observations and reported changes. Use authorised, comparable photographs. If the situation worsens or symptoms appear, do not wait for another photograph before recommending medical assessment.
Checklist before choosing a serum or treatment
Sources and update
SCCS/1680/25, final opinion adopted 2 February 2026: assessment of the three analogues.
European Commission: cosmetics legislation: source for EU regulatory texts.
NHS: red eye and blepharitis: symptoms and seeking care, with UK pathways.
FDA: eye cosmetic safety: hygiene and precautions from the US regulator.
Eyelash serums: A comprehensive review (2024) and Eyebrow and Eyelash Alopecia: A Clinical Review: evidence limits and clinical context.
EMA: Lumigan: EU medicine information.
The Ordinary: serum ingredient list: UK manufacturer source used in the INCI comparison, accessed 23 September 2026.
Frequently asked questions
How can I tell whether eyelashes are broken or naturally short?
Appearance or a single photograph cannot establish this with certainty. Record changes and compare consistent photographs; do not pull shafts to test them. A short lash may be growing or broken.
Do eyelash extensions always damage natural lashes?
No. Shorter-looking lashes after removal do not prove damage or its cause. Application, removal, daily habits and symptoms need to be considered; increasing or patchy loss needs assessment.
Will a treatment break make thin eyelashes grow back?
Not necessarily. A break reduces further exposure but does not identify or treat every cause. There is no universal number of weeks or guarantee of regrowth; worsening needs assessment even during a break.
Does castor oil make eyelashes grow?
There is not enough evidence to recommend it as a regrowth treatment. Do not use products near the eyes without an appropriate intended use, and stop products that irritate.
Are peptide eyelash serums safer than prostaglandin analogues?
An ingredient family alone cannot establish safety. The whole formula, exposure, directions and individual tolerance matter. For the three assessed prostaglandin analogues, see the SCCS’s 2026 conclusion above.
How do I identify a prostaglandin analogue in an eyelash serum?
Look for Isopropyl Cloprostenate, Methylamido-Dihydro-Noralfaprostal, Dechloro Dihydroxy Difluoro Ethylcloprostenolamide. These are the three names assessed by the SCCS; the last is also referred to as Ethyl Tafluprostamide. This list is not exhaustive, and their absence does not certify a serum’s safety.
Can a lash artist recommend bimatoprost?
A lash professional does not prescribe medicines. Do not use eye drops prescribed for another condition as a cosmetic. Ask a doctor or pharmacist; approved indications and prescribing rules vary by country.
Should I stop medication if my eyelashes are thinning?
Do not stop or change prescribed treatment yourself. Take your concerns and the timeline to the prescriber, who can assess whether a medicine is relevant and what to do next.
Can biotin or supplements fix fragile eyelashes?
Do not assume a deficiency from the appearance of your lashes. A healthcare professional should assess whether supplementation is needed and any possible interference with treatment or tests.
Can I apply a lighter extension set over thinning lashes?
Only if professional assessment confirms a suitable base and there are no symptoms or unresolved concerns. Even a light set adds load; a gap should not be filled by increasing the weight.
Should existing extensions be removed when lashes look sparse?
Do not remove them yourself. A professional assesses whether and how to proceed; eye symptoms call for medical advice first, not an at-home attempt with remover.
Can I repeat a lash lift to correct bent, fragile lashes?
Repeating chemical processing immediately can add stress. Have the treatment documented and pause corrections. Seek medical assessment if symptoms are present.
Does waterproof mascara cause fragile eyelashes?
Not automatically. Removal matters: allow the film to dissolve and avoid rubbing or pulling. Stop make-up on an irritated area.
Does a patch test rule out a reaction to eyelash serum?
No. A negative result does not exclude later reactions or different tolerance on the eyelid. Follow the instructions and stop the cosmetic if symptoms develop.
When should thinning eyelashes be assessed by a dermatologist?
When loss is sudden, progressive, patchy or involves other areas. A doctor can assess the problem and advise on dermatology care.
When do eyelash symptoms need an eye-care professional?
For persistent eye or eyelid symptoms. Pain inside the eye, altered vision or a very red eye needs urgent assessment through your local care pathway.
Are crusts at the lash roots always product residue?
No. They may need medical assessment. Do not scrape the eyelid margin or automatically treat crusts as cosmetic residue.
Can photographs prove that eyelashes are growing back?
No. Comparable photographs document appearance but do not show the follicle or establish regrowth or the cause of loss on their own.
Can I tint fragile eyelashes?
Tint does not repair the shaft. A professional must assess suitability and follow the system instructions. Postpone if there is irritation or uncertainty.
What belongs in the client record for fragile or thinning lashes?
For the lash professional: record the timeline, products and batches, treatment, reported symptoms, descriptive observations and decision. Photographs need permission and comparable conditions.
What should lash training teach about thinning or damaged-looking lashes?
Training should cover observation, hygiene, sustainable service design and stop criteria, clearly separating cosmetic assessment from clinical decisions.






