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Evidence-based GLP-1 & peptide discussion since 2023
ForumsCOA & Analytical TestingBatch-to-batch purity variation — looking for input Page 2

Batch-to-batch purity variation — looking for input

Dr.EndoIndy Fri, Feb 28, 2025 at 6:39 AM 17 replies 1,487 viewsPage 2 of 4
maria_elpaso
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Feb 28, 2025 at 9:29 AM#6

Congrats Dr.EndoIndy!! You should be so proud of yourself. 🎉

50 0FitDadDave, RunnerRach, TrialNerd_Beth and 47 others
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VendorMark
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Feb 28, 2025 at 9:46 AM#7

Clinical perspective on Batch-to-batch purity variation looking:

I have managed roughly 300 patients on GLP-1 therapy and this topic comes up frequently. What the data shows — and what I see in practice — is that the medication works best as part of a comprehensive approach.

For this specific question, I would recommend: getting comprehensive baseline labs first.

7 19KristenIndy, MarkLI_maint, Dr.PeteFamMed and 4 others
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Dr.AddMedPHL
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Philadelphia, PA
Feb 28, 2025 at 10:03 AM#8

Same experience here with Batch-to-batch purity. Dr.EndoIndy described it perfectly.

Last edited: Feb 28, 2025 at 12:03 PM
3 2mike.trainer_LA, sarah_nash92, FitDadDave
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lucas_SP_BR
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Jun 2024
São Paulo, BR
Feb 28, 2025 at 10:20 AM#9

Reading this thread on Batch-to-batch purity hits close to home. Night shift nurse — I started at 271 lbs and felt like I would tried everything.

7 months on tirz and I am a different person. Not just the 46 lbs lost — my energy, my mood, my relationship with food. All transformed.

If you are on the fence about Batch-to-batch — take the leap. It was the best health decision I have ever made. ❤️

Last edited: Feb 28, 2025 at 12:20 PM
18 5KarenAZ_mom, zoe_NC, Dr.ObesityLA and 15 others
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MeganSA_TX
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San Antonio, TX
Feb 28, 2025 at 10:37 AM#10
maria_elpaso said:
You should be so proud of yourself

This is exactly right. maria_elpaso articulated what I have been trying to explain to my friends for months. The Batch-to-batch purity aspect is what made the difference for me.

40 22mike.trainer_LA, sarah_nash92, FitDadDave and 37 others
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