Customer Reviews
Real feedback from researchers and customers. Every review is tied to a verified purchase.
kp-10 quality
kisspeptin-10 is a research compound used in reproductive endocrinology models. theirs is high purity, ms confirmed.
PT-141 quality
received in good condition. coa was attached. purity 98.6 ran on our hplc.
blue is real blue
the blue color is intense which is what you want for actual ghk-cu (the copper complex is blue). we've gotten lots from other suppliers that were nearly clear which makes you wonder. this is the real deal.
old school ghrp, still works
ghrp-6 is the original and the most studied. 22EXO's is good quality. would have liked a 10mg option also.
no issues
ordered, shipped, arrived, looked right. easy.
good quality, fair price
purity matched, price is fair, what else
GHRH/GHRP combo is solid
the classic stack. 22EXO blend is 1:1 ratio at 5mg total. for short-pulse research this is exactly what i need. clean reconstitution.
convenience factor is huge
having both peptides pre-blended at the right ratio saves me reconstituting two vials separately. for protocols where you want them together this is a huge time saver. lyo cake was uniform.
fine, vial seal a bit loose on one
one of two vials had a slightly loose flip-top seal but the inner stopper was intact and the cake was sealed. probably a QC catch. they offered to replace, didn't bother since the product was fine.
mitochondrial peptide done right
mots-c is a mitochondrial-derived peptide and the synthesis is more challenging than a typical peptide. 22EXO got it right. purity 98.7 confirmed in lab.
great for the price
10mg is the standard volume for chronic-dosing experiments. their version is clean and reasonably priced.
DSIP for sleep research
dsip is uncommon but i found 22EXO carries it. quality is on par with their other peptides.
Lab favorite
Entire department orders from 22EXO.
Solid lot
Switched from another supplier after they ghosted my COA request twice. 22EXO sent it before the package even shipped. Lot 24-08-BP157. No issues with reconstitution, no cloudiness. Will reorder.
Fragment integrity is excellent
We see complete and intact 176-191 sequence on tandem MS. No truncation products at detectable levels. Quality control here is clearly tight.
academic lab use
Bought for a wound-healing assay. Lyophilized cake was intact, dissolved in BAC water with no swirl-time issues. Mass spec matched the spec sheet identity peak. The cost difference vs. our previous vendor is noticeable.
Cleanest ipamorelin
No detectable impurities on HPLC.
tesamorelin at competitive price
tesamorelin is one of the more expensive peptides to source clean and 22EXO has good pricing. lot we received was 99.2 purity per their COA, our internal check matched within 0.3%.
Stability looks good in storage
Stored at -20C for 6 weeks before opening, no signs of degradation. HPLC showed no significant new peaks vs. day-zero reference.
Reliable for neurochemistry assays
Activity in our BDNF-modulation assay has been consistent. Quality has not varied across multiple lots.
classic ghrh, well-made
sermorelin is the og ghrh research analog and 22EXO's quality is up there with the best. nice cake, dissolves clean.
blend product is convenient
saves the cost and time of two separate vials. blend ratio is documented in the COA.
triple stack reconstitutes clean
Was a little nervous about a 3-component blend showing turbidity on rehydration but it dissolved completely clear. COA breaks out each individual peptide purity which I appreciate.
highest purity blend i've tested
Internal HPLC came back at 99.0% combined purity. Both peptides resolved as expected. This is now our standard for the GHRH+GHRP arm in our pulsatile-secretion experiments.
Good for pulsatile secretion studies
Used in a series of experiments measuring pulsatile growth hormone secretion. Peptide quality has been consistent across three lot numbers we have tested.
Repeat customer now
third order. consistent. consistent. consistent. that's the whole review honestly
Reliable for hypothalamic research
Have been using 22EXO's kisspeptin-10 for over a year. Lot-to-lot consistency has been excellent. Pricing is also fair compared to specialty suppliers.
right fragment, right purity
MS confirmed 176-191 fragment, no truncation, purity ran 98.5
Better than the other guys
Used to buy from one of the bigger names. Their last lot came in with visible discoloration in the cake — 22EXO's was textbook white, fluffy. Going forward this is where I'm ordering. The honesty about FOR RESEARCH USE ONLY also matters.
Telomerase research made easy
The 10mg format is ideal.
10mg is the move
math works out way better at the higher dose if you're running serial experiments. saves on per-mg cost. cake size was substantial. good vial seal.
fast
shipped fast. clean product. cant ask for more
TB-500 quality
very fluffy lyophilized cake which is what you want. dissolved in 2 mL of BAC water without any swirling needed. coa shows 98.4 purity which matches what they claim
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.
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All peptides are HPLC verified ≥98% purity with published COAs.