Monkey Resin; increases the quality, weight and density of your crops and is 100% certified as being completely free of PGRs. Monkey Resin is a higher-quality PK that promotes a lot more oil production - you can use both alongside the regular Monkey PK, but use it at half-strength .hb-qff .hb-qff-row { display: grid; grid-template-columns: 140px 1fr; gap: 14px; align-items: baseline; margin: 0 0 10px; } .hb-qff .hb-qff-row:last-child { margin-bottom: 0; } .hb-qff dt, .hb-qff dd { margin: 0; } @media (max-width: 480px) { .hb-qff .hb-qff-row { grid-template-columns: 1fr; gap: 3px; } } Quick Feed Facts THE HYDRO BROS Dilution / Dose 1ml per litre for visible results; up to 2ml per litre for stronger results When To Use 7–10 days into the flowering cycle, through to flush Substrate Fit Soil, coco & hydro — all systems Grower Notes Higher-quality PK that promotes extra oil production — can be run alongside regular Monkey PK at half-strength. Monkey Nutrient Feed Chart with PK Monkey Nutrient Feed Chart with Resin Boosting oils improves flavour, colouring and oils do not evaporate during the drying process. This results in heavier, more potent harvests with higher concentrations of flavours and aromas. More oils also means plants get better protection from high light levels and is better set to repel insect attacks. All in all, boosting terpenes gives gardeners many advantages, and being PGR-free is also safe! Looking for similar products? Check out Rock Resinator