Full Marks Solution is a 10-minute head lice treatment that is specially formulated to provide fast and effective relief from headlice. The solution contains no traditional pesticides but can successfully kill lice and eggs after one use.

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UK, Europe & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £45 to the UK.

Returns: Our supplements are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging.

Detection: To confirm a head lice infestation, find a live louse on the head using the Full Marks Detector Comb. Check weekly for prevention.

Treatment: Apply enough solution to cover the scalp and hair. First, detangle dry hair with a regular comb. Shake the bottle and spray the solution on dry hair near the roots, ensuring full coverage. Massage in and leave for 10 minutes. If someone has lice, check all household members and treat everyone with lice on the same day to reduce re-infestation risk.

Removal: After 10 minutes, use the Full Marks Removal Comb to remove dead lice and eggs. Divide hair into four sections and comb each separately. Comb from scalp to tips, rinsing and wiping the comb after each stroke. Once clear, set hair aside. Wash out the solution with a regular shampoo, no conditioner needed. You may need to wash twice. Repeat on days 7 and/or 14 if needed.

Welzo is not liable for allergen information. Always follow the directions/ingredients on the product packaging to ensure proper use.

If someone in your family needs Full Marks Solution Spray, check other family members for lice using the Full Marks Detector Comb and treat if needed. No special precautions are needed with this product, but stop use and consult a doctor or pharmacist if sensitivity occurs. If the solution contacts skin or eyes, rinse with warm water. The product is oily and may make surfaces slippery, so apply carefully. Protect clothing and upholstery with a towel to prevent staining. This is not a water-based shampoo. Keep hair away from flames or heat, and do not smoke while using.