FRIENDS FRVR HYDROCOLLOID BLMSH PATCHES. Benefits: Utilizing the effectiveness of hydrocolloid, a renowned moisture-retaining agent, this patch targets the extraction of fluids from active pimples or aids in the healing process of recently popped pimples.. Key Ingredients: Hydrocolloid- the ability to absorb fluids and create a moist environment conducive to healing.. Formulated Without: Parabens. Sulfates. Phthalates.