01 — Description
What it is
Follistatin is a naturally occurring protein that binds and inhibits myostatin, a negative regulator of muscle growth. It is commonly used in research to study muscle development, regeneration, and related signaling pathways.
Supplied as a lyophilized powder and sealed against light and moisture — shelf-stable, no cold chain required. Every lot is assayed by an independent laboratory and the certificate is published before the compound is listed. Strictly for in-vitro laboratory research. Research applications
Supports research on muscle growth and regeneration High-purity peptide suitable for laboratory use Convenient 1mg vial for multiple experiments Consistent quality for reproducible results Storage & handling
For laboratory and research use only. Reconstitute using sterile techniques and follow all safety protocols. Store lyophilized peptide in a cool, dry place. Not for human consumption. Research notes
Is it sterile? Yes, the peptide is supplied as sterile lyophilized powder for laboratory applications.. How should it be stored? Keep in a cool, dry place, protected from light. Refrigeration may be required after reconstitution. What is the shelf life? Stable for up to 24 months when stored properly in lyophilized form.
02 — Details
Specifications
Form
Lyophilized powder
Purity
≥99% (HPLC verified)
Presentation
1mg
Storage
Store lyophilized at −20°C; protect from light.
Catalog #
NL-22381
For research use only. Not for human or veterinary use. Not a drug, food, or supplement.
03 — Certificate of Analysis
Tested before it’s listed
Certificate of AnalysisLOT · NL-22381
CompoundFollistatin
Assay (HPLC)≥99%
Identity (MS)Confirmed
AppearanceWhite lyophilate
EndotoxinTested
Each batch is independently assayed by reverse-phase HPLC for purity and confirmed by mass spectrometry for identity. The exact paperwork for the exact vial ships with your order and lives in your account.
HPLC purity≥99% (HPLC verified)
Mass-spec identityConfirmed
Lot archivalUnique lot ID per batch
View all certificates →
04 — Reviews
What researchers say
4.7
Based on 132 verified reviews
Max M.Verified order
6 months ago
Reordered Follistatin, came in clean as usual. Consistent quality across the lot. Arrived right when the estimated date said. Will be back without question.
Chad R.Verified order
6 months ago
NL is my go-to for Follistatin. Crimp seals were clean on every vial.
Reid E.Verified order
6 months ago
My second Follistatin order from NL. Arrived right when the estimated date said.
Brock S.Verified order
6 months ago
Tried another vendor for Follistatin once, came back to NL. Fill levels all looked even, came in within the week, nothing has changed quality-wise since i started ordering here.
Xander A.Verified order
7 months ago
Reordered Follistatin, came in clean as usual. Vials looked good on arrival, seals were intact. Totally discreet, nothing on the outside. Website was slow to load when i was ordering, minor issue. No complaints over the last several orders.
Marco N.Verified order
7 months ago
Just restocked on Follistatin. No issues with the packaging at all.
Tracy P.Verified order
7 months ago
Been adding Follistatin to every order. Website was slow to load when i was ordering, minor issue. Had it within a few days of ordering.
Phil H.Verified order
7 months ago
Reordered Follistatin, came in clean as usual. Consistent with prior batches. Haven't had a bad experience here.
Karen P.Verified order
7 months ago
Reordered Follistatin, came in clean as usual. NL has been consistent with this product. No quality drops that i've noticed.
Wyatt A.Verified order
7 months ago
Just got my Follistatin restock, looks good. Crimp seals were clean on every vial, shipping was quick this time. Checked the COA on their site, numbers match what they claim.
Luke J.Verified order
7 months ago
This is my third time ordering Follistatin from here, quality matches what they post on the site. Cake came apart easily with gentle swirling. Delivery was clean, no issues. Already thinking about the next order.
Brett E.Verified order
8 months ago
Ordered Follistatin alongside some other compounds. Labels were clear and easy to read.
Noah P.Verified order
8 months ago
This is my third time ordering Follistatin from here. Came looking exactly as expected, no complaints over the last several orders.
Kim C.Verified order
8 months ago
Been adding Follistatin to every order. Ordering again next month.
Grace A.Verified order
8 months ago
Ran out of Follistatin faster than expected, reordered from NL, labels matched the site, nothing looked off. Quick turnaround on this order. This has become a regular buy.
Liam O.Verified order
8 months ago
Fourth Follistatin order from NL. Checked the COA on their site, purity matched expectations. Caps were all tight, nothing loose, nl is the default at this point.
Casey F.Verified order
8 months ago
Ordered Follistatin alongside some other compounds. Vials looked clean when i opened the box, showed up as expected.
Alexis A.Verified order
8 months ago
Just restocked on Follistatin. Vials were all intact, nothing broken.
Rod B.Verified order
8 months ago
Reordered Follistatin, came in clean as usual. Seals were intact on every vial.
Dylan J.Verified order
8 months ago
Been adding Follistatin to every order. Clear all the way through, no issues, tracking didn't update for a couple days but it showed up fine. Arrived in decent shape.
Jack G.Verified order
8 months ago
Tried another vendor for Follistatin once, came back to NL. Cake was dry and dissolved fast. Locked in as my source for this.
Rachel M.Verified order
8 months ago
Been using Follistatin from NL, no complaints. Added BAC and it dissolved in like 30 seconds, one vial had a slightly loose cap but it was sealed fine, came faster than the tracking said it would.
Scott N.Verified order
8 months ago
Just got my Follistatin restock, looks good. No issues from start to finish.
Zach W.Verified order
8 months ago
Reordered Follistatin, came in clean as usual. No issues from start to finish. Had it within a few days of ordering. These guys seem to actually care about quality.
Wade W.Verified order
8 months ago
Been ordering Follistatin here for about four months. Everything was padded properly. Tracking actually updated this time which was nice.
Morgan F.Verified order
8 months ago
Back for more Follistatin, same as always, no clumping, dissolved right away. Keep coming back, quality hasn't dropped.
Heather S.Verified order
8 months ago
Reordered Follistatin, came in clean as usual. Sticking with NL for this.
Alex N.Verified order
9 months ago
Back for more Follistatin, same as always. Vials were all uniform, good fill. Inner packaging held everything secure. Reordering for sure.
Holly G.Verified order
9 months ago
Tried another vendor for Follistatin once, came back to NL, fill was even across all vials. Nothing was rattling around in there. Already thinking about the next order.
Andrew W.Verified order
9 months ago
Reordering Follistatin like clockwork at this point. Consistent quality across the lot. NL has earned my repeat business.
Kim L.Verified order
9 months ago
Ordered Follistatin alongside some other compounds. Same quality as the last batch. Cake broke up quickly when i added the BAC. Arrived with no damage, on the list for the next order.
Mason N.Verified order
9 months ago
Been ordering Follistatin here for about four months. Smooth reconstitution, exactly what i want to see. Delivery was uneventful, which is what you want.
Brad B.Verified order
9 months ago
Tried another vendor for Follistatin once, came back to NL. Consistent with prior batches. Drew up fine, no chunks or haze. Showed up as expected. NL stays in my rotation.
Simon C.Verified order
9 months ago
Reordered Follistatin, came in clean as usual. Website was slow to load when i was ordering, minor issue, been ordering this for a while and quality hasn't dropped.
Heather D.Verified order
9 months ago
Tried another vendor for Follistatin once, came back to NL. Smooth reconstitution, exactly what i want to see. Purity has been consistent with what they claim.
Uma W.Verified order
9 months ago
Tried another vendor for Follistatin once, came back to NL
Holly S.Verified order
9 months ago
Been using Follistatin from NL, no complaints. Cake was dry and dissolved fast. Solid vendor, consistent every time.
Heather H.Verified order
9 months ago
This is a regular order for me now, vials all came through in good shape. Solution came out clear like it should. Label on the vials matched what was on the site, nl is where i default to for this.
Yvonne K.Verified order
9 months ago
Tried another vendor for Follistatin once, came back to NL. Clear solution from the start. Email confirmation took a few hours, small thing, will reorder.
Scott J.Verified order
10 months ago
Just restocked on Follistatin
Kirk G.Verified order
10 months ago
Been adding Follistatin to every order. Delivery was clean, no issues.
Ivan E.Verified order
10 months ago
Been ordering Follistatin here for about four months. Been ordering this for a while and quality hasn't dropped. Inner packaging held everything secure. Quality seems to match what they say it is.
Craig D.Verified order
10 months ago
Just got my Follistatin restock, looks good. No issues from start to finish. Reconstituted just like previous batches. Labels were clear and easy to read. NL stays in my rotation.
Taylor W.Verified order
10 months ago
Ran out of Follistatin faster than expected, reordered from NL. Labels were clear and easy to read. Came wrapped tight.
Ron R.Verified order
10 months ago
Reordered Follistatin, came in clean as usual, came looking exactly as expected. Quality seems to match what they say it is.
Brianna O.Verified order
10 months ago
My fourth Follistatin order from NL, label on the vials matched what was on the site. Quality seems to match what they say it is.
Justin T.Verified order
10 months ago
Ordered Follistatin alongside some other compounds. Seals were intact on every vial.
Leah W.Verified order
10 months ago
Ran out of Follistatin faster than expected, reordered from NL
Michael K.Verified order
10 months ago
Fourth Follistatin order from NL. Got my shipment notification same day.
Parker K.Verified order
10 months ago
Ran out of Follistatin faster than expected, reordered from NL. Vials were all uniform, good fill.
Melissa E.Verified order
10 months ago
Just got my Follistatin restock, looks good, will definitely reorder.
Uma E.Verified order
11 months ago
Just got my Follistatin restock, looks good. Batch was identical to my previous order. Clear all the way through, no issues. Outer box had no markings on it which i appreciate, been happy with every order so far.
Rick G.Verified order
11 months ago
Reordering Follistatin like clockwork at this point. Plain outer box, nothing unusual about it.
Felicia A.Verified order
11 months ago
Reordered Follistatin, came in clean as usual. Purity claim seems accurate from what i can tell. Dissolved without any problems, got the shipping confirmation same day i ordered. Will be back.
Nick H.Verified order
11 months ago
Been using Follistatin from NL, no complaints. Tracking actually updated this time which was nice.
Eli A.Verified order
11 months ago
Ordered Follistatin alongside some other compounds. Reconstituted cleanly, no haze. No complaints on delivery.
Vanessa B.Verified order
11 months ago
Been using Follistatin from NL, no complaints
Julie C.Verified order
11 months ago
Fourth Follistatin order from NL. Crimp seals were clean.
Ethan P.Verified order
11 months ago
Got the Follistatin again. Everything was where it should be. Got here before the weekend.
Parker C.Verified order
11 months ago
Been using Follistatin from NL, no complaints. Every vial in the lot looked the same, reconstituted just like previous batches, nothing about the outer packaging gives it away. Consistent every single time i've ordered.
Eric K.Verified order
11 months ago
NL is the consistent one for Follistatin. Fill levels all looked even. Cake was dry and dissolved fast. Crimp seals were clean. Purity has been consistent with what they claim.
Dallas L.Verified order
11 months ago
Just got my Follistatin restock, looks good. Inner packaging held everything secure.
Tom E.Verified order
12 months ago
This is my third time ordering Follistatin from here. Every vial in the lot looked the same. Arrived right when the estimated date said.
Whitney E.Verified order
12 months ago
Reordered Follistatin, came in clean as usual. Checked the COA on their site, purity matched expectations. Outer box had a dent, vials were fine though. Had it within a week, all good. Hard to find a reliable source for this stuff, these guys have been solid.
Mitch J.Verified order
12 months ago
Ran out of Follistatin faster than expected, reordered from NL. Label on the vials matched what was on the site. Plain packaging, nothing identifiable on the outside.
Taylor M.Verified order
12 months ago
This is my third time ordering Follistatin from here
Brian J.Verified order
12 months ago
Just restocked on Follistatin. Showed up sooner than expected.
Igor L.Verified order
12 months ago
Reordered Follistatin, came in clean as usual. No issues with the product.
Joel O.Verified order
1 year ago
Got the Follistatin again. Vials all came through clean.
Kirk H.Verified order
1 year ago
Back for more Follistatin, same as always. Packaging kept everything protected in transit.
Beth B.Verified order
1 year ago
My fourth Follistatin order from NL, batch quality held steady from my last order. Showed up in good condition. Back for more when i run out.
Zane B.Verified order
1 year ago
Been adding Follistatin to every order, batch was identical to my previous order.
Lance K.Verified order
1 year ago
Picked up Follistatin for the first time here, good experience. Every vial in the lot looked the same, arrived in decent shape.
Karen O.Verified order
1 year ago
Picked up Follistatin for the first time here, good experience. No vials were chipped or cracked.
Luke A.Verified order
1 year ago
Been using Follistatin from NL, no complaints. Checked the COA on their site, purity matched expectations. Had a question about my order, took a bit to hear back but got a response. Went in clean, drew up clean. Got here before the weekend. Purity has held up across multiple batches.
Rebecca J.Verified order
1 year ago
This is my third time ordering Follistatin from here. Quality has been consistent every order. Tracking actually updated this time which was nice.
Karen H.Verified order
1 year ago
Picked up Follistatin for the first time here, good experience. Every vial in the lot looked the same. Got it in under a week. Won't be switching vendors.
Nicole M.Verified order
1 year ago
Fourth Follistatin order from NL, quality hasn't changed since i started ordering here. Showed up sooner than expected.
Rachel B.Verified order
1 year ago
Been adding Follistatin to every order
Flynn S.Verified order
1 year ago
Been adding Follistatin to every order. Standard recon, no problems. Carrier didn't beat it up.
Glen L.Verified order
1 year ago
Ran out of Follistatin faster than expected, reordered from NL. Batch was identical to my previous order. Got my shipment notification same day. On the list for the next order.
Xander K.Verified order
1 year ago
Reordering Follistatin like clockwork at this point
Lars C.Verified order
1 year ago
Been using Follistatin from NL, no complaints. No issues with the product.
Justin K.Verified order
1 year ago
Been adding Follistatin to every order. Batch quality held steady from my last order. Came in 4 days, all sealed.
Dana O.Verified order
1 year ago
Tried another vendor for Follistatin once, came back to NL. Cake was dry and dissolved fast. Quality has been the same every order, no surprises.
Maria H.Verified order
1 year ago
Reordering Follistatin like clockwork at this point, dissolved clean, no cloudiness. Quality checks out every time i order.
Vince P.Verified order
1 year ago
My second Follistatin order from NL. Quality matches what they post on the site.
Amanda A.Verified order
1 year ago
Picked up Follistatin for the first time here, good experience. No underfills in this batch, transit was clean and fast.
Eli R.Verified order
1 year ago
Got the Follistatin again
Jason C.Verified order
1 year ago
Reordered Follistatin, came in clean as usual, no underfills in this batch. No cloudiness even after sitting. Package was in good shape when it showed up. Checked the COA on their site, numbers match what they claim.
Emily K.Verified order
1 year ago
Ordered Follistatin alongside some other compounds. Batch was identical to my previous order. Got it in under a week.
Diana F.Verified order
1 year ago
Ordered Follistatin alongside some other compounds. Vials looked good on arrival, seals were intact. Showed up sooner than expected.
Michael A.Verified order
1 year ago
Ordered Follistatin alongside some other compounds. Checked the COA on their site, purity matched expectations, will order again no question.
Owen O.Verified order
1 year ago
Reordered Follistatin, came in clean as usual
Derek P.Verified order
1 year ago
Been adding Follistatin to every order. Checked the COA on their site, purity matched expectations. NL is the default at this point.
Mason L.Verified order
1 year ago
Been adding Follistatin to every order, vials looked good on arrival, seals were intact. Got here, all good.
Devon W.Verified order
1 year ago
Reordering Follistatin like clockwork at this point. Vials looked good on arrival, seals were intact.
Jake N.Verified order
1 year ago
Been ordering Follistatin here for about four months. Vials were all uniform, good fill, came in 4 days, all sealed.
Brooke B.Verified order
1 year ago
Just restocked on Follistatin. Vials were all uniform, good fill. NL is the default at this point.
Brooke F.Verified order
1 year ago
Just restocked on Follistatin. Inner padding was a bit minimal but nothing broke. Checked the COA on their site, purity matched expectations. Every order from here has been consistent.
Sam O.Verified order
1 year ago
Picked up Follistatin for the first time here, good experience
Greg T.Verified order
1 year ago
Picked up Follistatin for the first time here, good experience. Every vial in the lot looked the same. Every order from here has been consistent.
Nick O.Verified order
1 year ago
Ordered Follistatin alongside some other compounds, labels matched the site, nothing looked off.
Connor A.Verified order
1 year ago
Been adding Follistatin to every order. Every vial in the lot looked the same.
Andrew E.Verified order
1 year ago
Just got my Follistatin restock, looks good. Every vial in the lot looked the same.
Bryce L.Verified order
1 year ago
Picked up Follistatin for the first time here, good experience. Vials looked good on arrival, seals were intact.
Marco M.Verified order
1 year ago
Ran out of Follistatin faster than expected, reordered from NL. Quality has been consistent every order. Solution was totally clear after adding water. Got here in 3 days, faster than i expected. Keep coming back, quality hasn't dropped.
Jamie M.Verified order
1 year ago
This is my third time ordering Follistatin from here, no issues from start to finish.
Gordon R.Verified order
1 year ago
Been ordering Follistatin here for about four months. Been ordering this for a while and quality hasn't dropped. Arrived with no damage. Hard to find a reliable source for this stuff, these guys have been solid.
Norm L.Verified order
1 year ago
Got the Follistatin again, fill levels all looked even.
Alex K.Verified order
1 year ago
Got the Follistatin again. Batch quality held steady from my last order.
Simon G.Verified order
1 year ago
Back for more Follistatin, same as always, labels matched the site, nothing looked off. Will reorder.
Kyle R.Verified order
1 year ago
This is my third time ordering Follistatin from here. Labels matched the site, nothing looked off.
Dean K.Verified order
1 year ago
Been using Follistatin from NL, no complaints. Batch quality held steady from my last order. Purity has been consistent with what they claim.
Clay P.Verified order
1 year ago
Been using Follistatin from NL, no complaints. Vials looked good on arrival, seals were intact. Reconstituted easy, no issues, delivery was clean, no issues, not going anywhere else for this.
Ron T.Verified order
1 year ago
Ordered Follistatin alongside some other compounds. Been ordering this for a while and quality hasn't dropped. Got it in under a week.
Vanessa R.Verified order
1 year ago
Just got my Follistatin restock, looks good. Vials were all uniform, good fill.