G10 (Gravitation #10) started as a substitute for Gravity but turned into something else. It?s not Gravity- it?s something MORE! Increases the size and mass of flowers. Seeing is believing! For even more drastic results, prime the pump with Deep Breath in veg and the first 2 weeks of bloom then switch to G10 in the 3rd week for a powerful finish. For maximum ?Gravity effect? use with Sonic Bloom and Killer Tea. No PGR?s.