This answer comes straight from our in-house doctor along with our manufacturer:
Skin Strong products are formulated with a unique combination of ingredients including vitamins and essential oils that are important for the health of your skin. The hypoallergenic properties minimise irritation and allow you to perform at your highest level. Each of our products has undergone rigorous field testing and has proven safe and effective. At Skin Strong we believe that you can be strong and be comfortable.