Understanding Contraindications: When NOT to Offer Eyelash Extensions

Eyelash Extensions and Contraindications

Eyelash extensions can transform a look, but there are situations where applying them may be unsuitable. These are known as contraindications. Whether you’re a seasoned lash technician or new to the industry, knowing what to look for during a consultation helps you decide when to proceed, when to postpone and when to suggest medical advice.

Contraindications to Discuss at the Consultation

Some contraindications are temporary, while others may mean the service is unsuitable for the client. They can come to light during a consultation, after a patch test or when a client reports symptoms following a treatment. Here are some situations to consider.

Allergies and sensitivities. Ask about known allergies and previous reactions to lash treatments. Follow the adhesive manufacturer’s patch-testing guidance, along with any applicable local and insurance requirements. A test without symptoms cannot rule out a later reaction. If a client has had a suspected reaction to lash adhesive, defer the service and suggest medical advice before further exposure. Clear adhesives such as Crystal Bond are an option for styling, but a clear formula can still contain cyanoacrylate.

Chronic dry eye or eczema. Ask whether the client has current symptoms around their eyes or eyelids. If the area is irritated, or the client can’t comfortably keep their eyes fully closed, postpone the appointment. For ongoing conditions, check the adhesive manufacturer’s contraindications and your insurer’s requirements before rebooking.

Blepharitis. Blepharitis can cause sore or itchy eyelids and flakes or crusts around the roots of the lashes. If the client has active symptoms, defer the treatment and suggest they seek advice from a healthcare professional about managing them and when it’s appropriate to rebook.

Conjunctivitis (pink eye). Postpone the appointment if the client has active conjunctivitis or unexplained redness, watering or discharge. Conjunctivitis can have several causes, and infectious forms can spread to others. Suggest the client seek advice if they’re unsure what’s causing their symptoms.

Recent eye surgery or injury. If a client has recently had eye surgery or an eye injury, ask them to check with their treating clinician before booking. Follow any restrictions the clinician gives them, as well as your insurer’s and adhesive manufacturer’s requirements.

Alopecia or lash loss after chemotherapy. Extensions need suitable natural lashes to attach to. If there are too few lashes to support the set, explain what’s achievable and defer application where needed. Keep professional lash adhesive off the eyelid.

Trichotillomania. Some clients pull at their natural lashes. Discuss this sensitively if the client brings it up or if you notice gaps or breakage during the consultation. Assess whether the remaining lashes can support extensions and explain your decision without making assumptions about the cause.

Medication. If a client tells you that a medication is affecting their eyes, skin or lashes, record what they report and check whether it changes the suitability of the service. Direct questions about medication or side effects to their pharmacist or clinician.

Pregnancy. Check your own insurance policy and the manufacturer’s guidance before booking a pregnant client. If you can offer the service, discuss whether the appointment length and position will be comfortable. If the client has medical questions, suggest they speak to their maternity care team.

Practical Tips for Lash Technicians

• Consult first. Ask about current symptoms, recent eye treatments and previous reactions. Update the consultation record when a returning client tells you something has changed.
• Explain your decision. If you need to postpone, tell the client why and what they should check before rebooking. If they report eye pain, sensitivity to light or changes in vision, advise them to seek urgent medical assessment.
• Check the product guidance. Adhesives marketed as sensitive may still contain cyanoacrylate. Check the ingredients and directions for the product you use, and defer the service if the client reports a suspected adhesive reaction.
• Use professional products as directed. Follow the instructions for your pretreatment products, lash adhesives and eyelash extensions. Explore the London Lash EU blog for more on products and techniques.
• Pause if you’re unsure. If the client becomes uncomfortable during application or you spot a possible contraindication, stop and reassess before continuing.

A thorough consultation gives you time to decide whether eyelash extensions are suitable for the client. If you need to postpone or decline the treatment, explain your reasons clearly and let the client know what they can do next.