Never heard that before. <shrug>
**broken link removed**
"STEP 4
After all of the dilutent has been added to the HGH vial, gentling swirl (do NOT agitate or violently shake the vial) until the lyophilized powder has dissolved and you are left with a clear liquid. The HGH is now ready for use. Store your now reconstituted HGH in the refrigerator. If you used BW to reconstitute it will be good for three weeks. If you used sterile water, it will be good for about 5 days."