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Evidence-based GLP-1 & peptide discussion since 2023
ForumsCOA & Analytical TestingUSP reference standards for peptide verification — anyone have experience? Page 3

USP reference standards for peptide verification — anyone have experience?

lisa_labSD Sat, Jun 29, 2024 at 11:05 AM 13 replies 1,991 viewsPage 3 of 3
stefan_berlin
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Oct 2024
Berlin, DE
Jun 29, 2024 at 3:20 PM#11

steph_laguna — wow. I've been looking for this exact info for weeks.

15 3NeuroNate, JessicaH_TX, KevinCompounds and 12 others
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CanadaChris
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Nov 2024
Toronto, CA
Jun 29, 2024 at 3:37 PM#12

Slightly tangential to USP reference standards but lisa_labSD reminded me — has anyone else noticed changes in their alcohol tolerance?

I know it is not exactly on-topic but it seems related enough to ask here rather than starting a new thread. Apologies if this has been covered — I did search first.

Last edited: Jun 29, 2024 at 9:37 PM
23 8stefan_berlin, Dr.EM_Chicago, pete_RVA and 20 others
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KetoKyle
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Jul 2024
Utah
Jun 29, 2024 at 3:54 PM#13

Thanks for sharing this, lisa_labSD. A few questions about your USP reference experience:

  1. What dose are you currently on?
  2. How long before you noticed significant changes?
  3. Did your doctor have any specific recommendations about USP reference?

I am in a similar boat and trying to learn from others' experiences before my next appointment.

34 4pat_auckland, Dr.GastroMayo, JakeBK_lifts and 31 others
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lisa_labSD
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Oct 2024
San Diego, CA
Jun 29, 2024 at 4:11 PM#14

OP here — wow, did not expect this much response! Thank you all for the thoughtful replies on USP reference standards.

To answer CanadaChris: I get my labs done through Quest every 3 months.

Quick update: my latest labs came back even better. Thanks again for the evidence-based discussion — this is exactly why I posted in a science-based community. 🙏

41 18lori_vegas, Dr.PulmRoch, maya_sedona and 38 others
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HPLC_Greg
Senior Member
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Feb 2024
Research Triangle, NC
Jun 29, 2024 at 4:28 PM#15

Relevant to USP reference standards for — here is my latest bloodwork comparison:

Key improvements: A1C 8.0% → 5.3%, triglycerides 231 → 101 mg/dL, hsCRP 6.0 → 1.3 mg/L. All on tirzepatide for 11 months.

The inflammatory marker drop is what impresses me most. Consistent with the SELECT trial's cardiovascular findings.

8 7SaraMom3, Dr.MetabolicMD, RetaRick_CA and 5 others
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