7-OH Extract vs Whole Leaf: Purity, Potency, and Why It Matters for Research

# 7-OH Extract vs Whole Leaf: Purity, Potency, and Why It Matters for Research The kratom market increasingly splits into two camps: traditional whole-leaf products, and modern extracts and isolates. The extract category is growing faster, driven by demand for dose precision. Here is the technical comparison. ## Whole Leaf Products Whole leaf kratom — powder, capsules, or dried crushed leaf — delivers the full alkaloid spectrum. Mitragynine dominates (50-70%), with 7-OH, speciogynine, paynantheine, and dozens of minor alkaloids making up the balance. Research using whole leaf captures the combined and potentially synergistic effects of all these compounds. See [red vein vs green vein](/blog/red-vein-vs-green-vein-kratom) for how strain choice affects whole-leaf alkaloid ratios. ## Extracts Extracts concentrate specific alkaloids by solvent extraction followed by chromatographic separation. A "full-spectrum extract" preserves the alkaloid ratios at a higher concentration. A "7-OH isolate" strips everything but 7-OH, giving you a standardized single-compound product. Our [pure 7-OH tablets](/product/pure-7oh-labs-blue-raz) are isolate-based, meaning the 7-OH content is the primary active with mitragynine minimized or absent. ## Potency Extracts are multiples more potent per milligram than whole leaf. A typical whole-leaf dose runs 3-5 grams. A typical 7-OH isolate dose runs 5-10 mg. The numerical gap reflects the concentration difference — not a different "strength" in any absolute sense, just different active ingredient per unit mass. ## Reproducibility Extracts win for reproducibility by a wide margin. Whole-leaf batch variance can run 20-30% in alkaloid content depending on harvest, drying, and storage. Extracts are standardized to a fixed active ingredient mass. For research logs, dose-response studies, or anything requiring statistical power, extracts eliminate a major source of variance. ## Cost per Effective Dose Whole leaf tends to be cheaper per-gram but more expensive per active-milligram. Extracts flip the ratio — more expensive per gram, cheaper per active milligram. At 7OH North our [tablets](/shop) are priced in the middle tier of the extract market. ## Safety Considerations Dose titration is easier with precise extracts — you always know what you have. Whole leaf requires gravimetric measurement and tolerates less margin for error. Either way: start low, titrate up, keep records, and for Canadian researchers make sure you are ordering from a vendor with [third-party lab testing](/blog/importance-of-lab-testing) rather than unverified overseas suppliers. ## Which to Choose Whole leaf: full alkaloid spectrum research, traditional use replication, lower per-unit cost. Extract / isolate: dose precision, single-compound research, reproducibility, portability. Most modern researchers use both at different stages — whole leaf for initial scoping, isolate for confirmatory dose-response work. *Products are sold for research purposes. Not for human consumption.*