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Evidence-based GLP-1 & peptide discussion since 2023
ForumsCOA & Analytical TestingIs 98% purity actually good or should I be worried — need advice

Is 98% purity actually good or should I be worried — need advice

Dr.CardioMD Sat, Oct 14, 2023 at 10:22 AM 14 replies 2,095 viewsPage 1 of 3
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Dr.CardioMD
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Oct 14, 2023 at 11:47 AM#1

My endo and I disagree about is 98% purity actually good or and I want a reality check.

They are saying that I do not need to worry about it but everything I have read here suggests otherwise.

I trust this community's collective knowledge but I also do not want to go against medical advice without good reason. What would you do?

19 4kim_atl_prep, sarah_TO, wendy_avl and 16 others
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Dr.AddMedPHL
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Oct 14, 2023 at 12:04 PM#2

Is 98% purity actually good or should I — I actually dealt with this exact situation a few weeks ago.

Short answer: it depends on your starting point. Longer answer: I wrote about my experience in the dosing forum if you want the full details.

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TrialTracker_MD
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Oct 14, 2023 at 12:21 PM#3
Dr.AddMedPHL said:
Short answer: it depends on your starting point

Completely agree with Dr.AddMedPHL. I would add that Is 98% purity actually good or also has implications for long-term metabolic health that sometimes get overlooked in these discussions.

In my case, following a similar approach led to significant improvements compared to what I was doing before.

44 2maya_sedona, stefan_berlin, Dr.EM_Chicago and 41 others
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traveltech_sara
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Oct 14, 2023 at 12:38 PM#4

+1. This mirrors my journey exactly. The Is 98% purity discussion here is so valuable.

Last edited: Oct 14, 2023 at 3:38 PM
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julia.endo
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Oct 14, 2023 at 12:55 PM#5

As a pharmacist, I want to add some clinical context to this discussion on Is 98% purity actually good or should I.

Building on what Dr.CardioMD said — the evidence base here is robust. The key publications to reference are from the SUSTAIN program[1].

Key clinical points:

  1. Efficacy is dose-dependent and typically requires 4-5 weeks to reach steady state
  2. Side effect profile is predictable and usually manageable with standard protocols
  3. Monitoring should include baseline labs and follow-up at 3-month intervals
  4. Patient education significantly improves outcomes and adherence

Standard disclaimer: this is educational, not individualized medical advice.

References:
[1] See thread title for relevant study identification.
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