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This is a vendor review submitted by AllisonW on PeptideCritic.com.

Rating: (5/5) · Peptide: GLP3-R + Cagrilintide Blend · Reviewed November 9, 2026

I can’t believe I caught the end of their amazing Halloween sale! I lucked out and got five vials of RT/cag for such an amazing price. They always ship fast, have GREAT, QUALITY products and they…

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This is a vendor review submitted by nick2 on PeptideCritic.com.

Rating: (5/5) · Peptide: SS-31 · Reviewed November 9, 2026

Tony at Peptide Plugs is the best in the business. His website is well designed and user friendly and his products are top notch. Use NICK75 to get 10% off your first order.

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This is a vendor review submitted by MS in NV on PeptideCritic.com.

Rating: (5/5) · Peptide: Wolverine · Reviewed November 6, 2026

All of the above...extremely reliable in all categories and all the peptides I've ordered from them (many). Have not encountered a down-side on any level except one small one. Emailed a question to…

Read the full review on Instant Peptides' page

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This is a vendor review submitted by dcwilk on PeptideCritic.com.

Rating: (5/5) · Peptide: GLP3-R · Reviewed November 7, 2026

Nice job. Shipped the same day. Had a Fedex tracking number in my mailbox by the end of business. Two day delivery. Very, very smooth.

Read the full review on Southern Aminos' page

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This is a vendor review submitted by frankconcepcion on PeptideCritic.com.

Rating: (5/5) · Peptide: PT-141 · Reviewed November 8, 2026

I have ordered several times from this company. It’s now the first company that I’ve done research with, but they are the most professional. the most transparent company that I deal with very fast…

Read the full review on Nextgen Peptides' page

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This is a vendor review submitted by rickwingfield on PeptideCritic.com.

Rating: (5/5) · Peptide: TB-500 · Reviewed November 8, 2026

I have ordered dozens of peptides from this company. I can say that the vials are clearly labeled, the COAs are easy to read and verify. The cake dissolves quickly and clear. Shipped items are…

Read the full review on Legendary Peptides' page

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This is a vendor review submitted by vitalityhealthgroup on PeptideCritic.com.

Rating: (4/5) · Peptide: GLP3-R · Reviewed November 8, 2026

Evolve offers a great product at a very great price for a retail supplier. Communication isn't great though. They don't respond to inquiries. That's why I can't give 5 stars. Finnrick has reported…

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This is a vendor review submitted by mjohnson on PeptideCritic.com.

Rating: (5/5) · Peptide: SS-31 · Reviewed November 9, 2026

Love this place 5 pack box at 40%-50% off. You get me every time. COA's on point no garbage. Great customer service who's responsive, is huge to me. Hate feeling ignored when it's folks like me who…

Read the full review on Midwest Peptide's page

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This is a vendor review submitted by jdon on PeptideCritic.com.

Rating: (5/5) · Peptide: NAD+ · Reviewed November 11, 2026

Im praying I won't have to change penguin as my go to peptide provider. Im 61, my health; amongst what I put into my body. Matters. Be the provider I need to only repair what's broken while ever…

Read the full review on Penguin Peptides' page

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This is a vendor review submitted by MmmmYah on PeptideCritic.com.

Rating: (5/5) · Peptide: GLP2-T · Reviewed November 11, 2026

Received great communication after the purchase including a photo of the vials being shipped (I purchased T30 and bac water hospira). Received the COA. Can't wait to try it.

Read the full review on StudzPeptides' page

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So the very first run i had with NAD+500 mg (btw I know technically it’s not a peptide)was great (maybe the placebo effect) and ever since then I have been running NAD+1000 spread out throughout my week not having the same energy I did in the beginning. I will be discontinuing it. Any other suggestions for the clean energy mental clarity type pep that you all have stuck with ?

In one of the many communities I frequent, we have a possible vial mixup between SS31 and PT141. There are several members that have been administering what they assumed was SS31-50(According to the Axiom COA for that batch), which is now suspected to be PT141-10(According tot the Freedom COA for the same batch)

At least two members have reported significant skin darkening and a blue hue after weeks of administering the product.

This could be a Lab Shortcut, but definitely a vial mixup in the least.

I’m not revealing the source at this moment, because it seems to be a group specific supplier, and if you buy from them, you have this information already.

Does anyone here have any firsthand information on how reversible the skin condition is? No I’m not looking for AI answers, we already have all that. I’m looking for first, or second hand information. There are a lot of nervous people right about now because of this mixup.

I haven’t seen anything on this after a search. Does anyone have any experience and what are you mixing, I have done the @randy face serum with GHK- cu and snap 8 it works great wondering if using a micro needle may make it more effective and if that dose may be too high.

I have read a lot about reconstituting this. Some people say to use acetic acid or PBS or whatnot. And then other people are of the opinion that if it doesn’t recon well with regular hospra bac water, it is probably just a bad peptide vial regardless.
So I got one vial from S1 research and two from Southern Aminos. The one from S1 gelled, and the two from Southern were instantly cloudy and never cleared. I used the same bottle of hospita bac water that I used for my other peptides recently, and never had a recon problem.
So does anyone have extensive experience with AOD? Is there really a trick to it or not? I am also aware that a lot of people do not like this peptide at all. I do have tesa/Ipa that I haven’t touched yet.

I've read up on long term storage for peptides. Of course I get differentienting data because...well..."the internet will internet." I've read that a deep freezer or commercial/pharmaceutical freezer is the best option. I'm not interested in spending that kind of money for 50 vials of peptides. It's seems that the next best option is a manual frost chest (or standup) freezer due to the low and non flucating temperature. I currently don't have one of those. So for the last few months, I've just been storing my existing long term peptides in a hydrapeak in my refigerator freezer. However, I've read that this is not very good for the peptides becuase of the fluctuations in temperature due to the frost free process.

So to test, I setup two thermomentors. One sits alone in the freezer itself. The other sits in a hydrapeak with descicant packs. The attached graph shows the variances in temperature between the two. The blue line is the hydrapeak thermometer and the orange is the one in the fridge. You can see the swings in temperature of the freezer thermometer. However, the hydrapeak thermomoter has it's biggest variance of 4.3 degrees (-.6 degrees to -4.9). Most of the time is just a couple of degrees. Is that 4.3 degree swing, or constant 2 degrees, really enough to damage the peptides? It seems very small to me. Especially considering the stability of the humidity with the descicant packs.

I'm not opposed to spending the money on a manual frost freezer as they are relatively inexpensive. It's roughly about 8 years worth of peptides. I've only opened my peptide hydrapeak to add more peptides, and expect to leave it closed unless adding or removing as necessary.

Thoughts?

f

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Hi All,
I’m new to peptides and glad to be here. I started tirzepatide in July 2026 for diabetes, and I was really impressed with my lab results. That got me curious about peptides more broadly.

I’ve been reading online and watching YouTube, and I started an Excel cheat sheet to keep my own notes organized. When I went looking for reliable sources, I found that most places had too many filters and a lot of conflicting information. I came across this community through a search on Claude AI, and it feels like a real find. The depth of knowledge and the sources people share here are exactly what I was looking for.

Thank you for building such a helpful space. I’m looking forward to learning from you all and contributing where I can.
Regards,
Zack

Hello, I am a newbie from NC.
Height: 5'2 (my driver's license, but I have shrunk to 5'1 at age 49)
Starting weight: 193lbs November 2025, down to 176 in June 2026 through Ketovore diet and 3-4 days strength training, and daily walking. I am already eating well, and working out, but I only lost a few lbs, meanwhile my husband who is on the same diet and same work out (lifting lighter weights than I do) lost 25 lbs. (Maybe I am stressing too much in making us both healthy. I prep all the food and force him to work out every other day)

I am perimenopausal, and my latest lab works says I am pre-diabetic, highly insulin resistant, have a high cortisol level, and high inflammation markers, and with other biomarkers also out of whack.

Since nothing is working, I have decided to try GLPs, but it is so cost prohibitive, even going through Ro and Noom is still expensive. So, I dug around some more and bought my first Reta in September from a reseller who has a high rating on trustpilot. Product was great, but price was still high. Some more digging led me to this website.

I bought my second batch of Reta from a vendor I found here and also bought SS31, Mots-C, GHK-cu, KPV, BP153, TB-500 from 2 other vendors which I also found here.

I added KPV to reta last Friday to address chronic inflammation, will add SS31 next week, and then add Mots-C week after, and GHK-cu the following week.

I also started my husband on KPV last Friday, and then add BPC153 next week, then TB-500 week after, then GHK-Cu the following week. I know I could get him started on the KLOW stack, but I wanted to see if he has any reaction to any of the individual peptides, and I also want to have complete freedom with dosing however his body responds. He has joint pains: shoulder and knees, as well as restless leg syndrome.

Thank you to the admin and to all the individuals whose combined knowledge and first hand experiences make this website/forum AMAZING!

These were delivered today along with 3 new V4 pens from the Peptide Critic Store. Been wanting to use a pen for my NAD+ but I knew it is light-sensitive. So when I saw the new amber cartridges I had to get some. And have more on the way and a couple more V3 Ultra's. But I'm diggin these carts! So glad Jeff and @randy decided to carry these in the store. Anyway, I transferred over my 20mL vial of NAD+ from Modern Aminos, missing about 2mL's since I started the vial 5 days ago.

Welcome to Peptide Critic.

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One sentence is plenty. You don’t need to write a formal introduction or share personal details.

If you prefer to read for a while first, you’re welcome here too.

—Randy