Opal Essence All Natural makes no medical claims about our products.
Zinc Oxide has been approved by the FDA as a UVA and UVB protecting SPF agent. As lips are particularly sensitive to damage by the sun's rays, a good SPF protection lip balm is always a good idea.
Quoted from SelfGrowth.com:
"Zinc Oxide is one of the key ingredients in sunscreen formulations. It is known for its superior sun protection capabilities and preventing skin damage. In fact, it is the safest and most effective ingredient that protects the skin against long wave UVA rays."
Quoted from LiveStrong.com
"Zinc oxide is also effective for healing the skin. It can be used to heal wounds, reduce the tenderness associated with sunburns and soften chapped skin."
Quoted from BeRavishing.com
"This additive to natural beauty products is a key ingredient of the traditional skin treatment calamine lotion. It is anti-inflammatory and is used in sunscreens as a result of its natural skincare property of adhering to the skin and reducing the amount of potentially dangerous ultra violet rays absorbed. This feature of non-absorption means zinc oxide is nonirritating and nonallergenic. There is some evidence it may well be an anti-oxidant too."