This is Piggy Paint Base Coat + Sealer in a 0.5 fl oz (15ml) bottle. It’s the water-based basecoat/sealer that pairs with the Piggy Paint polish line — used to give the manicure maximum chip resistance and a longer-wearing finish than polish applied to bare nails.
Application sequence from the listing: apply a thin coat of Base Coat + Sealer and air dry, apply 2–3 thin coats of Piggy Paint polish, then seal with another layer of Base Coat + Sealer. Finish with Piggy Paint Shine Topcoat if a glossy, scratch-resistant finish is wanted. Piggy Paint dries to the touch like traditional polish but takes longer to fully cure because there are no solvent-based hardeners — a hair dryer on warm heat and low blower for a minute helps speed curing.
Piggy Paint is Made in USA, built around a water-based formula a mom developed so her own kids could actually use nail polish. Every bottle is vegan, cruelty-free, and free of the harsh chemicals found in solvent-based polish.