Another good experience Another good experience. This batch wasn't quite as good as the last batch from a week ago. It seems to go like that from batch to batch. I don't think it's the sellers fault, as I don't believe they mix their own solutions. I've never gotten anything totally bunk, but some batches are definitely better than others. Still happy with the order despite slightly underwhelming testing on GCMS dosage wise. 5 stars nonetheless for convenience and longevity. I've placed probably 50 orders and never had an issue besides some batches being more concentrated than others. The batch I got last week was amazing, this batch is OK. Still happy. Loyal Customer Nick M

They continuously send my package to… They continuously send my package to the wrong address even after telling them three times my REAL address. It’s intentional they want to returned to sender. DO NOT ORDER FROM THEM. My address is 8305 not 8395. I’ve corrected it four times and they won’t listen. I got scammed. Do not order from this. This review and the others I’m gonna write will disappear once i get my read package

Rcs are EXTREMELY watered down nothing… Rcs are EXTREMELY watered down nothing near the CORRECT dosing labeled. Did a sample order it was pretty much a bottle ethanol alcohol and Propylene glycol with about 25-30% of actual ingredient emailed them they apologized saying there was a shortage which I never understood if there’s a shortage then sell what you have at correct dosing as labeled correct potency then put the item out of stock dont just sell your customers a bunch of bottles of binders “ethanol&PG as previously mentioned” still gave them another order not to big around 4-500$ SAME SH!T!! Highly DO NOT RECOMMEND giving them the 2 stars literally for not being complete scammers

Long time customer Long time customer I have been using P4S for years. Top notch customer service and communication. Have enjoyed their variety of products over the years, have seen some come and go. For the most part quality has been highly consistent. Some batches have been 'better' than others, yes, but overall my research results have been solid. For ease of use and consistency, these guys are as good as it gets.

Most professional and trustworthy company Where to start... I've been dealing with these guys for a couple years now and there has never been a problem that was not resolved within 2 hours of emailing them and sorting it out. The consistency of the product blows me away, the quality is always extremely consistent and you know what you're going to get every time you place an order. Shipping is usually same day if placed early enougn. It is always priority usps and they send you the tracking as well. Not to mention have I seen products go out of stock ever. All around extremely professional and easy on to deal with. Out of maybe 30 orders none have not come on time. Highly recommended!