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

Vendor communication red flags for compounded supply:

• Won't provide COA before purchase — walk away
• Claims "100% pure" without analytical data — unrealistic
• No physical address or phone number — accountability matters
• Pushes you to buy more than you need — pressure tactics
• Won't answer questions about their compounding process — transparency is key
• Payment only via crypto or wire transfer — legitimate pharmacies accept cards

A legitimate compounding pharmacy operates like a healthcare business, not a gray market dealer.

newstart_MO said:

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

Second this. The detail I would add is minor and it is already implied above.

newstart_MO said:

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

503A vs 503B compounding pharmacies for compounded supply — this distinction matters enormously:

I strongly recommend 503B facilities. The FDA oversight and cGMP requirements mean more consistent product quality.

newstart_MO said:

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

For compounded supply users considering compounded for the first time: here's a step-by-step guide:

1. Get a prescription from your doctor (telehealth counts)
2. Research 503B compounding pharmacies with good community reviews
3. Verify their FDA registration and inspection history
4. Request a COA for your specific compound before ordering
5. Start with a 1-month supply to test
6. Consider sending a sample to Janoshik for independent verification
7. Track your response compared to brand (if you were on it previously)

LindaRN_retired said:

503A vs 503B compounding pharmacies for compounded supply — this distinction matters enormously: Feature 503A 503B Regulation State Board of Pharmacy…

Price comparison for compounded supply across sources I've used:

I use the 503B option — best balance of quality, cost, and legality. The brand price is insane but insurance can help if you qualify.