This product is out of stock. We recommend these alternatives.

Full Marks Solution 6 Treatments – 300ml

Full Marks
Out of stock
Checked for Accuracy by James O'Loan . CEO & Prescribing Pharmacist . on 20/09/2021

What is Full Marks Solution?

Full Marks Solution is an easy and effective treatment for headlice. The low odour formula doesn’t contain any pesticides and takes around 10 minutes to work. This highly effective treatment is clinically proven to kill head lice quickly and is suitable for children aged 2 years and over. This pack contains 6 treatments and a comb.  If you’re looking for a safe, successful and easy treatment for head lice, try Full Marks. 


What are head lice?

Head lice are tiny parasitic insects that can live on human hair and feed on the blood from the scalp. If you have a head lice infestation you may experience an itchy scalp, however due to their tiny size they may be hard to spot until there are many present in the hair. Although they are a nuisance, head lice do not pose a serious health risk and are usually easy to treat. Head lice and nits are a common problem for young children and their families as they are easily spread through head to head contact. Adult head lice typically grow to around 3mm in length and a typical infestation can consist of around 30 head lice, however it is possible to have more than 1000 lice in your hair if the infestation is severe. 


How do head lice spread?

It is a myth that head lice can only be found in hair that is unclean, however this isn’t accurate. Head lice can be spread to hair that is in any condition, but they are most commonly found in the hair of young children, especially those who have long hair. Lice cannot jump,fly or swim, so they can only spread through head to head contact with a person who has a lice infestation. It can take just half a minute for a head louse to crawl from one head to another. It is extremely unlikely to develop a lice infestation from sharing hats, brushes, combs or pillows as head lice can’t survive for long once they are removed from your head, as they no longer have a food supply. However it is recommended as a precaution that you avoid sharing personal items if you have an infestation. 


Are nits the same as head lice?

The terms nits and head lice are often used interchangeably to describe the insect, however they are not the same thing. Head lice multiply through attaching eggs to your hair with a glue-like substance, which is excreted by females as they lay. Head lice eggs can hatch within a week and leave behind the empty white egg cases which are called nits. If you see nits in your hair after using a treatment, it doesn’t necessarily mean that you still have an active head lice infestation (live head lice in your hair), as the empty egg cases can remain stuck in your hair after the lice have been removed. 


How does Full Marks Head Lice Treatment remove head lice?

Full Marks Head Lice Treatment contains the active ingredient cyclomethicone and isopropyl myristate which kills the lice through dehydrating them. The caring formula does not contain any pesticides to reduce the chance of the lice becoming resistant to treatment and does not have an overwhelming odour. Full marks removes both the live lice and the eggs.  This pack contains 6 treatments and a comb for your convenience. The formula is suitable for children aged 2 years and over, including children who have asthma and sensitive skin. 


How to use this product

Full Marks Lice solution is easy to use. Following just a few easy steps can help you to get rid of head lice quickly and effectively:

  • Comb through the dry hair with a normal comb to remove any tangles
  • Shake the Full Marks Solution Bottle and apply the solution to the dry hair and massage well from root to tip ensuring the entire scalp and all of the hair is coated with the solution
  • Leave the solution on the hair for 10 minutes
  • After you have left the solution on the hair for 10 minutes, comb through the hair with the comb that is included with the pack to remove any lice in the hair
  • Once you have completed the treatment rinse out the solution with normal shampoo
  • Repeat the process after 7 and/or 14 days as required

When NOT to use Full Marks 

Do NOT use this product if you are allergic to any of the ingredients (see ingredients tab for full list). This product is not water based and can be flammable. Keep hair away from any form of naked flame or heat source and do NOT smoke whilst using this product.


Important Information

This product is a medicine; make sure to speak to your doctor or Chemist 4 U pharmacist before taking this product if you have an underlying medical problem or are taking any other medicine or complementary therapy. If your symptoms get worse or continue after taking this product, contact us or your doctor. For medical services in your area, please refer to

If you are pregnant, trying to become pregnant, or breastfeeding, speak to your doctor or our pharmacist before taking this product. If you suffer from any allergies, ask your doctor or our pharmacist if this medicine is right for you.

Store all medicines out of sight and reach of children.

Please read the included leaflet carefully before using this product.

Please contact your GP if appropriate regarding this product.


Helpful Advice on Medication Restrictions & Addiction

For further information on our medication restrictions policy, please click here.

If you are concerned about addiction to 'over the counter' medication, we urge you to visit the below links for professional help and advice:

Active Ingredients

  • Cyclomethicone, Isopropyl Myristate


  • Cyclomethicone Isopropyl Myristate
Product Data
Active Ingredient(s)
Cyclomethicone, Isopropyl Myristate
Full Marks

Ask a Pharmacist

Didn't find the answer you were looking for? Submit a private question to be answered by one of our qualified UK pharmacists.

* Name and email address are only captured so you can be emailed a response when your question is answered by a pharmacist. No personally identifiable information is stored or displayed at any time.

Shipping Costs

Free UK Delivery on all orders over £30* - Delivery within 3-5 working days

Standard UK Delivery - £2.95* - Delivery within 3-5 working days

Please Note: These prices are shown as a guide only. All delivery times are approximate but have been obtained in good faith.

*Excluding refrigerated products and treatments which are subject to different postage charges.

Discreet Delivery

All our items are sent completely discreet for your peace of mind.

This means the packaging is plain, there is no mention of what product is inside your package and there is no mention of Chemist4U either.

We respect that many of our products are of a sensitive nature - this is why we take every step to keep your purchases private.

Returns Information

Customers can read our full returns policy by clicking here