Hair Health in Your Hands HALO Test Kits provide a practical way to begin your Hair Health journey where appropriate. A test kit may allow agreed samples or information to be collected at home and returned for the relevant testing process. The exact test available, sample requirements, laboratory process and reporting will depend on the individual service. HALO Test Kits are not a substitute for medical diagnosis. Where a result suggests that medical investigation may be appropriate, HALO can recommend that you speak with your GP or another suitably qualified healthcare professional. HALO Hair in Post Where available, a Hair in Post option can make starting your HALO journey simple. Receive your kit. Follow the instructions. Return the required sample. Review the results through the agreed HALO service. Less travel. Practical testing. Personal support. Where appropriate, selected HALO resources can be delivered directly to your door as part of our wider aim to reduce unnecessary journeys.