Best Crystagen vendors in 2026
Buying Crystagen: what the field looks like
We track 3 in-stock Crystagen listings across 3 US retail vendors, and re-read every one of them each night. Ranking below is by cost per milligram, which is the only figure that compares a 5mg vial against a 10mg one honestly.
The cheapest source works out at $2.75/mg against a median of $3.00/mg across the field — 8% less for the same milligram of the same compound. That gap is why this page exists: on Crystagen the vendor you pick matters more than the size you buy.
The lowest total cart is $55.00 at libertypeptides. That is the cheapest way to hold Crystagen at all, which is a different question from the best cost per milligram — the two are the same vendor only sometimes.
Top 3 Crystagen vendors at a glance
| # | Vendor | Size | Cheapest vial | Per mg | vs median | Score | |
|---|---|---|---|---|---|---|---|
| 1 | libertypeptides | 20mg | $55.00 | $2.75 | 8% under | 5.2/10 | View → |
| 2 | erospeptides | 20mg | $59.99 | $3.00 | — | 7.8/10 | View → |
| 3 | fusionpeptide | 20mg | $59.99 | $3.00 | — | 6.0/10 | View → |
All 3 ranked Crystagen vendors
libertypeptides
20mg$55.00$2.75/mg5.2/10Get deal →Prices sit in the 54th percentile of each compound's field — cheaper than 46% of listings. · Cheapest source we track on 4 compounds. · 37 compounds, 42 live listings. · 97% of listings in stock at the last check. · No certificates published that we could find. · Tracked for 2 days.
erospeptides
20mg$59.99$3.00/mg7.8/10Get deal →Prices sit in the 31th percentile of each compound's field — cheaper than 69% of listings. · Cheapest source we track on 7 compounds. · 52 compounds, 80 live listings. · 95% of listings in stock at the last check. · Certificates published on 60% of listings, newest 2 months old. · Tracked for 2 days.
fusionpeptide
20mg$59.99$3.00/mg6.0/10Get deal →Prices sit in the 57th percentile of each compound's field — cheaper than 43% of listings. · Cheapest source we track on 3 compounds. · 46 compounds, 105 live listings. · 100% of listings in stock at the last check. · Certificates published on 27% of listings, newest 4 months old. · Tracked for 2 days.
How we rank these vendors
Vendors are ordered by cost per milligram of their cheapest in-stock single vial. Nothing else moves the order — not commission, not whether a vendor has a partner programme, not how long we have tracked them.
The score beside each vendor is a listing-quality score, not a purity or trust score. We have no laboratory and we do not test anything. It is built from figures we measure ourselves: where the vendor's prices sit inside each compound's own field, how many compounds they carry, how reliably their listings stay in stock, and how many certificates they publish. Every input is shown beside the number.
Prices older than 48 hours are dropped rather than shown stale, so a vendor missing from this page is usually a vendor whose site we could not read last night.
Common questions
Who sells Crystagen cheapest right now?
libertypeptides, at $2.75 per milligram and $55.00 for the cheapest single vial. That is across 3 US retail vendors, checked within the last 24 hours.
How much should Crystagen cost per mg?
The median across 3 vendors is $3.00/mg. Anything at or under that is a fair price; the cheapest we can find is $2.75/mg, and the top of the market runs to $3.00/mg.
Do you sell Crystagen?
No. We sell nothing and ship nothing. Every link goes to the vendor's own store, and some of them pay us a commission — those are labelled on the row, and commission never affects the ranking, which sorts on price alone.