Hydration is the quiet foundation of healthy, resilient skin, yet it is one of the most misunderstood aspects of skincare. Many people assume dryness is the only sign of dehydration, but skin can feel ...

Medically reviewed by Steffini Stalos, DO Key Takeaways Skin tests for allergies include skin prick testing, intradermal ...

Patch testing describes a procedure to help identify what ingredients might irritate a person’s skin. Many skin care products contain chemicals that can cause an allergic reaction when a person ...

All skin tests doctors commonly use to check for food allergies can provide false negative results, the Food and Drug Administration has concluded — meaning people with potentially life-threatening ...