Baby's Physical Goals. Every day is a new adventure during baby's first year, as she hits new physical, emotional and social developmental milestones week after week. Wondering what the average age is for most babies to roll over, sit up on their own, crawl, walk and talk?
It is all attributed to the photoinitiators that added into the gels. The photoinitiators react when exposed to various wavelengths of UV light. Most photoinitiators react upon exposure to 340-410nm of lights. Therefore, nail lamps emits lights in 340-410 can get the nail polishes cured and get them dry.
Using a UV light for gel nails. Photo: Jaunty Junto/Photodisc (Getty Images). Gel nails (basically long-wearing nail polish) resist chipping and last longer than regular manicures, sometimes lasting up to three weeks depending on the manicure, maintenance and growth of the nails. And under a UV or LED light, the polish dries quickly to a shiny, professional-looking and durable finish.