My purple polish is ILNP Purple Plasma, a deep purple (duh) holo. The bottle shot is more color accurate than the mani puctures. I used three coats for opacity.
For the stamping I used aEngland Her Rose Adagio and MoYou Pro Collection plate 12.One coat of KBShimmer Clearly On Top finished this mani.
ILNP polishes are available on Etsy, Hypnotic Polish and at their own shop.
aEngland polishes are available at various places, you'll find a complete list of retailers here.