This index is compiled from the live listings published on GoodTradeCenter for the Collagen category. At the time of the last refresh it covers 15 active spot listings from 1 supplier. All figures are derived from the unit price and specification fields the suppliers themselves publish — nothing on this page is estimated or modelled.
| Metric | USD |
|---|---|
| Listings with a usable price | 15 |
| Lowest unit price | 2.5 |
| Median unit price | 20 |
| Average unit price | 18.6 |
| Highest unit price | 49 |
The spread between the lowest and highest unit price reflects specification and pack-size differences, not merely supplier margin. Units in this category include: piece, vial. A quotation is only comparable once the unit and the pack size are aligned, so always convert to a common unit before comparing offers.
Specifications appearing only once are omitted from this summary; the full set is visible on the individual product pages.
Delivery times are quoted by the supplier and start from order confirmation, not from the date of inquiry.
1 supplier currently list in this category. The largest accounts for 15 of the 15 listings:
Reading note: supply in this category is concentrated in a small number of suppliers. That means a competitive quotation depends on contacting more than the first listing you see, and on confirming that a supplier can hold the specification over repeat orders rather than only for a single lot.
Treat the median as your working reference and the low end as the number to investigate rather than the number to assume. Where a listing sits well below the median, check the specification and pack size first: in ingredient categories, an unusually low unit price usually corresponds to a smaller fill, a lower concentration, or a different unit of sale. Confirm the specification in writing, request a sample if the supplier is new to you, and where the order value justifies it, arrange inspection before shipment.