All the RU58841 we sell is tested by a third-party, US-based lab. Typical purity is over 99%, full purity analysis pdf for the current batch can be viewed on our website.
Premium blend uses pure ethanol (grain alcohol) as a solvent, value blend uses ethanol denatured with up to 5% isopropyl (rubbing) alcohol and/or a bitterant. We will never use alcohol which has been denatured with toxic methanol or heptane.
RU58841 is a fast-acting anti-androgen with a half-life of one hour, that breaks down into other anti-androgens with a half life of up to 20 hours, for all day protection.
External use only. Do not ingest.