Resin-XS was designed to meet the critical demands of growers wanting larger yields. There is no other flowering additive able to compete in terms of quality of yield, cleanliness and ease-of-use. Resin-XS helps improve fruit quality and development. Resin-XS is PGR free. Resin-XS will NOT induce foul residues or odors in the reservoir, nor cause blockages to drippers and filters. Unlike competing brands, the unique ingredients used in Resin-XS are extremely stable thereby resulting in greater reliability and consistency for growers. PK-additive component is ideal for use with any nutrient regime as it is “pH-neutral” and carefully balanced for universal application. Dosage: 1-4 ml/L (4-15 ml/Gal). Use from about the third week in bloom up until harvest. CAUTION: Organic additive – NEVER use in conjunction with chlorines or peroxides.