ENRICHRx™ Essentials Acidless Primer - 17mL / 0.57fl.oz   The primer for ENRICHRx™ Essentials nail system. ENRICHRx™ Essentials Nail Primer creates union between nail & product. Strong but gentle, a superior bonding agent that works without the harsh acids that can burn or irritate cuticles and skin. Apply one coat to create a strong bond between nail keratin and ENRICHRx™ Builder Gel or Soft Gel Tips.