Customer Reviews
Real feedback from researchers and customers. Every review is tied to a verified purchase.
Reliable supplier for fragment work
We're particular about fragment integrity since incomplete sequences ruin the experiment. 22EXO's QC has been consistent across two orders. Cake was uniform, MS clean.
Pure glutathione
500mg format is generous for redox research.
no surprises, all good
shipped fast, clean product, documentation in order
epithalon for telomere research
running a long-term assay on telomerase activity and 22EXO's epithalon has been consistent across two lots. coa included.
no issues at all
purity 98.9 verified on our equipment. matches COA. fast ship.
10mg version saves money
We were buying the 5mg twice as often. 10mg is essentially 2x at not-2x the price. simple math win.
Reliable
MT-II quality has been consistent across multiple lots. Pricing is fair. COA detailed.
Hard-to-source compound, well done
MOTS-c is not a peptide every supplier carries because the synthesis is not straightforward. 22EXO has been reliable across multiple orders.
Semax cognitive research
semax is widely studied for bdnf modulation. 22EXO's product is high purity, runs as expected. coa included automatically.
Rating only — no written review.
wanted a discount code that didn't work
tried bundle5 from a blog post and it errored out. ended up paying full. product seems fine.
site is slow on mobile
Took forever to load the product page. Eventually placed the order. Vial arrived fine.
Email confirmation took an hour
Order confirmation email arrived ~60 min after checkout. Made me think the order didn't go through. Then it did.
Cold pack was warm
By the time the package got to me the gel pack was already room temp. Probably fine for lyophilized stuff but felt like the cold-shipping claim was overstated for cross-country.
label slightly crooked
minor cosmetic thing. product is fine. just looked weird.
wrong tracking number sent
tracking number in the email pointed to a totally different shipment. the actual package arrived fine. fix the system.
no instructions for reconstitution
I had to look up reconstitution myself. Knowledge base has the info but it should be in the box.
expected free shipping
didnt realize the threshold was $200. paid 18 for shipping. product is fine.
wanted express shipping wasn't an option at checkout
had to use standard. no complaints about the actual product.
Box was a little crushed
Outer cardboard had a corner dented. Vials inside were intact and the cold pack was still cold. Shipping carrier issue not 22EXO.
took 4 days
shipping took longer than the website implied. product itself looks fine, will update once we run it through hplc.
great product!
absolutely fantastic. lyophilizate is even, reconstitutes clean. happy customer
tried to deliver when i wasnt home
fedex left a slip. had to drive to the depot. otherwise fine product i guess.
Effective neuropeptide
Good quality Semax. The N-terminal modification is confirmed by our mass spec analysis. Reliable product.
Reliable supplier
Consistent quality across 4 orders. Always ships within 24 hours. The COA transparency is appreciated.
Good quality, fast delivery
Product arrived in perfect condition. Purity checked out. Would recommend for sexual health research protocols.
Solid product
Good quality TB-500. Packaging was secure and product arrived cold. Would have liked a slightly larger vial.
Best healing blend available
Our tissue repair research has accelerated significantly with this blend. Quality is outstanding.
Good longevity peptide
Solid product. Our cell culture assays showed measurable telomerase activation. Packaging was excellent.
Reliable and consistent
Third order from 22EXO. Always the same high quality. Shipping to our facility was straightforward.
Very good quality
Clean product with accurate labeling. Shipping was fast to our lab. The only reason for 4 stars is we wish there was a 10mg option.
Good quality, solid COA
Purity checked out at 98.7% on our end. Only minor note is the vial labeling could be clearer. Product itself is excellent.
Lab favorite
Our entire department orders from 22EXO now. NAD+ quality is consistently high. COAs are always included.
Exactly as described
Consistent with the COA. Our collagen synthesis assays showed clear dose-dependent activity. Premium product.
Pure GH fragment
The lipolytic fragment is well-characterized in our adipocyte studies. Purity exceeds 98%. Great for metabolic research.
Clean reconstitution
Dissolved immediately in BAC water. No cloudiness. COA was included and verified against our own testing.
Gold standard GHRH analog
We use this as our reference standard. Purity is consistently above 98.5%. Fast reconstitution.
Reference-grade thymic peptide
We use this for our immune modulation studies. Acetylation at the N-terminus is confirmed. Batch consistency is excellent.
Clean Mod GRF
Purity at 98.9%. Short half-life confirmed in our PK studies. Exactly what we needed for pulsatile GH research.
Convenient blend format
Having both peptides pre-combined saves significant prep time. The ratio is well-balanced and purity of both components is confirmed.
Excellent MC4R agonist
Binding assays confirm strong melanocortin receptor affinity. Product quality matches the published Vyleesi data.
Fast shipping, clean product
Arrived well-packaged in 2 days. Reconstituted cleanly with no visible particulates. Very satisfied.
Outstanding copper peptide
The 50mg format is generous. Blue color confirms copper complexation. Purity exceeded expectations at 99.1%.
Superior nootropic peptide
We've tested multiple suppliers. 22EXO's Semax consistently shows the highest purity and biological activity in our BDNF assays.
Best value for 10mg
The 10mg size is the way to go for longer protocols. Purity is just as high as the 5mg. Great price point.
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All peptides are HPLC verified ≥98% purity with published COAs.