What metals are hypoallergenic
What metals are hypoallergenic ？ What metals are hypoallergenic ?Hypoallergenic means “below normal” or “slightly” allergenic. The term was coined by the cosmetics industry in the 1950’s, and became a popular marketing term for jewelry soon afterwards. Many people are allergic to nickel, so “nickel free” and “hypoallergenic” are sometimes considered synonymous. Be aware that hypoallergenic [...]