Dr.Martinez said:

Vendor communication red flags for compounded supply: Won't provide COA before purchase — walk away Claims "100% pure" without analytical data —…

Same experience, arrived at from the opposite direction. Posting only so the count is not one.

labquiet_amy said:

Compounding pharmacy response time test for compounded supply: I email customer service at odd hours to test responsiveness.

Saving this. It is the first explanation that did not require me to already understand it. Printing the relevant bit and taking it with me.

Adding the clinical framing, because it changes how the question reads.

Compounding pharmacy customer here with experience relevant to compounded supply.

I've ordered from 5 different compounding pharmacies over the past 18 months. The quality variation is real — purity ranged from 94% to 101% of label claim based on independent Janoshik testing.

My current compounder (a 503B facility) has been consistently 98-101% purity across 5 orders. I pay $132/month vs $1,242 for brand. The savings are substantial and the product is equivalent in my experience.

Re: compounded supply — this applies whether you're using brand or compounded. The clinical principles are the same.

hyun_seoul said:

Compounding pharmacy customer here with experience relevant to compounded supply.

Can confirm. Same sequence, different timescale. I had assumed I was the exception until I read this.

Moderator note: a post naming a supplier has been edited. Discuss suppliers in the review sections, not here. No action needed from anybody.