Follow the directions for use, first test product on a small patch of skin in the area you wish to treat. If after 24 hours there is no adverse reaction, proceed with full application. Waxing may not be suitable for the elderly or diabetics. Do not use if taking oral retinoid or using topical Retin A. Do not use on sunburnt, dry, flaky, broken or irritated skin, over warts, pimples, moles, varicose veins or if you have suffered any adverse reaction to waxes in the past. Not suitable for scalp, breast, nipple, perianal or genital areas.