well i used directchems.com and chemicalapi.com but both are shut down and the 1 i have now is very secure like u need to put in the last 4 digits of ur social security to make an account on it so they know your 18 and since im not 18 im gnna have to try to get my sister's social sec. and try to make an acct then but if your still interested the prices are like $180 for 100g and like $110 for 50g or osmething in that range