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Hedrin 4% Lotion

Thornton & Ross

Head Lice Treatment

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£ 12.90
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£ 12.90
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    Hedrin 4% Lotion 150ml Lotion - Rightangled
    Hedrin 4% Lotion 150ml Lotion - Rightangled

    Quick view Summary

    • Type of medicine

      Topical Lotion

    • Effective within

      Recommended to leave on for at least 8 hours or overnight

    • Works by

      Suffocating and immobilizing head lice and nits

    • Active ingredient


    • Strength


    • Common side effects

      Skin irritation, allergic reactions (rare), eye irritation (if in contact)

    • Generic


    • Use with alcohol

      Avoid contact with alcohol to prevent irritation

    Hedrin 4% Lotion


    Discover a reliable and clinically proven solution for tackling head lice infestations with Hedrin 4% Lotion. This over-the-counter formulation is meticulously crafted to combat head lice, a common issue affecting individuals of all ages, particularly children. Hedrin 4% Lotion offers a safe and efficient remedy that addresses head lice concerns effectively. The active ingredient, Dimeticone, sets this lotion apart, as it works by suffocating and immobilizing both head lice and their eggs, known as nits. This easy-to-use lotion provides a non-invasive method to combat head lice and restore peace of mind.

    Head lice infestations can cause discomfort and distress, making it essential to choose a treatment that is both effective and gentle. Hedrin 4% Lotion delivers on both fronts, offering a reliable solution that prioritizes safety and efficacy. The lotion is formulated with care, ensuring that it is easy to apply and suitable for a range of age groups. Head lice can affect anyone, regardless of age, gender, or hygiene practices. Therefore, having a dependable treatment like Hedrin 4% Lotion on hand is a valuable asset for every household.

    When it comes to treating head lice, Dimeticone is the star of the show. This silicone-based compound has earned its reputation as a trusted ingredient for addressing head lice infestations. Dimeticone's mode of action involves forming a protective barrier that encases the lice and nits, ultimately disrupting their respiratory processes and rendering them immobile. This targeted approach is both effective and safe, making Hedrin 4% Lotion an excellent choice for families seeking a solution to head lice woes.


    Applying Hedrin 4% Lotion is a straightforward process. Follow these steps to ensure effective use:

    - Check for Lice: Before applying the lotion, carefully inspect the scalp for the presence of live lice and nits. This can be done using a fine-toothed comb specifically designed for this purpose.

    - Dry Hair: Ensure that the hair is completely dry before applying the lotion. This helps the lotion to adhere to the hair effectively.

    - Application: Apply a sufficient amount of Hedrin 4% Lotion to cover the entire scalp and hair. Massage the lotion thoroughly to ensure that all areas are covered, from the roots to the tips of the hair.

    - Waiting Period: Leave the lotion on the hair for at least 8 hours or overnight. This allows the active ingredient to work effectively in immobilizing the lice and nits.

    - Rinsing: After the waiting period, wash the hair using regular shampoo. The lotion will easily rinse off, leaving the hair clean and lice-free.

    - Fine-Toothed Comb: After rinsing, use a fine-toothed comb to gently remove any dead lice and nits from the hair. This step helps ensure a thorough removal.

    - Repeat if Necessary: In some cases, a second application may be necessary after 7 days to target any newly hatched lice that were not affected by the initial treatment.


    The active ingredient in Hedrin 4% Lotion is Dimeticone. Dimeticone is a silicone-based substance that is widely used for its effectiveness in treating head lice infestations. It works by coating the lice and nits, disrupting their ability to breathe and eventually leading to their immobilization and demise. Dimeticone is well-tolerated and safe for use, making it a preferred choice for treating head lice in various age groups.

    Side effects

    Hedrin 4% Lotion is generally well-tolerated and has a low risk of causing side effects. However, as with any product, there is a possibility of individual reactions. Some potential side effects may include:

    - Skin Irritation: In rare cases, the scalp or skin may experience mild irritation or redness after application. This is usually temporary and should subside quickly.

    - Allergic Reactions: Allergic reactions to the ingredients in the lotion are extremely rare but not impossible. If you notice any signs of an allergic reaction, such as itching, swelling, or difficulty breathing, discontinue use and seek medical attention.

    - Eye Irritation: Take care to avoid contact with the eyes during application. If accidental contact occurs, rinse the eyes thoroughly with water.


    While Hedrin 4% Lotion is a safe and effective treatment, there are certain precautions and warnings to keep in mind:

    - External Use Only: Hedrin 4% Lotion is intended for external use only. Do not swallow the lotion, and avoid contact with the eyes, mouth, and any open wounds.

    - Children: This product is suitable for use on children and adults. However, exercise caution when applying the lotion to children's scalps, ensuring that they do not ingest or come into contact with the lotion.

    - Allergies: If you have a known allergy to any of the ingredients in the lotion, do not use this product. Always check the ingredient list before application.

    - Pregnancy and Breastfeeding: While there is no evidence to suggest that Hedrin 4% Lotion is harmful during pregnancy or breastfeeding, it is advisable to consult a healthcare professional before use.

    - Combustible: Keep the lotion away from open flames, sparks, and heat sources.

    - Storage: Store the lotion in a cool, dry place and keep it out of reach of children.

    Remember that individual responses to treatments can vary. If you have any concerns or questions about using Hedrin 4% Lotion, consult a pharmacist or healthcare professional for personalized guidance.

    Patient information leaflet

    Download patient information leaflet (PIL) on the link below:


    Is Hedrin 4% Lotion suitable for all ages?

    Yes, Hedrin 4% Lotion is formulated to be safe and effective for individuals of all ages. Whether you're addressing a head lice infestation in a child, teenager, or adult, the lotion's gentle yet powerful formulation is designed to provide relief without causing harm. It's a versatile solution that can be used across different age groups.

    Can I use Hedrin 4% Lotion if I have sensitive skin?

    Absolutely. Hedrin 4% Lotion is crafted to be well-tolerated, even by individuals with sensitive skin. The formulation is designed to minimize the risk of irritation, making it suitable for a variety of skin types. However, if you have a history of skin allergies or sensitivities, it's always wise to perform a patch test before applying the lotion to the entire scalp.

    How often should I repeat the application of Hedrin 4% Lotion?

    In most cases, a single application of Hedrin 4% Lotion followed by the recommended waiting period is sufficient to address the head lice infestation effectively. However, in some situations, a second application after 7 days may be necessary. This follow-up application helps ensure that any newly hatched lice are targeted, providing comprehensive treatment.

    Is Hedrin 4% Lotion safe for use during pregnancy and breastfeeding?

    While there is currently no evidence to suggest that Hedrin 4% Lotion is harmful during pregnancy or breastfeeding, it's always prudent to consult a healthcare professional before using any treatment during these periods. They can provide personalized guidance based on your specific circumstances and health history.

    Can I combine Hedrin 4% Lotion with other head lice treatments?

    It's generally recommended to use Hedrin 4% Lotion as a standalone treatment. Combining different treatments can sometimes lead to unnecessary exposure to multiple active ingredients. If you're unsure about the effectiveness of Hedrin 4% Lotion or have concerns about the treatment's results, it's best to consult a healthcare professional or pharmacist for guidance before considering any additional treatments.

    Medically reviewed and published

    This page was medically reviewed by Dr Sohaib Imtiaz, Clinical Lead |

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