If you are sourcing Polyquaternium-37 for a curl or coil styling gel, ask for the complete INCI, the supply form and the polymer content of the exact grade before requesting a sample. Ask your formulator to compare it with your current gel base or benchmark. A quote that lists only “Polyquaternium-37” leaves too much open to judge how the material will fit your formula or what it will cost to use.
Can I substitute one Polyquaternium-37 grade for another?
Treat a change of grade as a new trial. Some commercial products list Polyquaternium-37 as one component of a blend. BASF’s Salcare® SC 95, for example, lists Polyquaternium-37, Paraffinum Liquidum and PPG-1 Trideceth-6. That declaration belongs to the BASF grade. Use the ingredient declaration and handling sheet for the specific material on your quote. BASF grade information
| Ask the supplier for | Use it to decide |
|---|---|
| Grade code, supply form and full INCI | Whether your formulator and label reviewer can evaluate the proposed material |
| Polymer content, reporting basis and test method | Whether two quotes use a comparable basis for the quantity supplied |
| Grade-specific handling guidance | Whether the grade fits the equipment and process your lab or contract manufacturer uses |
| Current offered-lot COA and specification | Whether the sample and a proposed shipment can be traced to the quoted grade |
If you already have a prototype, send the supplier the incumbent grade code or INCI and the application. “Clear leave-on styling gel for tightly coiled hair” gives them more to work with than “hair care.” Mention the attributes you care about most, such as clarity, spread, dried residue or hold.
How should a small brand compare samples?
Keep a portion of your existing base or benchmark for comparison. Ask the formulator to document the grade, lot, trial conditions and any process adjustments. On the same type of hair swatch, compare the wet application and the result after drying. Record the gel’s appearance in the jar and note any changes during your normal stability checks. Describe what you observe in the prototype, including clumping, haze or residue, so the next trial can address a specific problem.
Agree with your contract manufacturer on the sample quantity needed for its trials before ordering. Ask whether the bulk shipment can be supplied from the sample lot and what checks would apply if a different lot ships.
What goes in the first RFQ?
We are developing a leave-on styling gel for curls and coils. Please confirm the grade code, supply form, full INCI and polymer content with its reporting basis. Please quote a sample and first-order quantity for delivery to [country], and share the specification, handling guidance and current lot COA for the offered grade.
Review the product listing and include your intended pack size, destination and trial quantity in the enquiry. BIOF Polyquaternium-37 product page · Request sample terms and a quote
Post time: Nov-11-2026
