The Bond Is as Important as the Hair
Keratin extensions depend on consistent bond size, shape, anchoring and installation behavior.
Key Bond Checks
Bond size, strand weight, anchoring, melting/re-forming behavior, brittleness and tool compatibility.
I-Tip vs U-Tip
Different installation methods require different QC emphasis.
Measure a Representative Bond Sample
Record the bond width, length, thickness and approximate hair load per strand at multiple points across the sample. Inspect whether loose fibers protrude, whether the bond shape varies across the pack and whether hair can be pulled out under a documented handling check.
Test the Intended Installation Method
Evaluate the tip using the salon tool and procedure specified for the product. Observe heating or mechanical fastening, brittleness during handling, re-forming where applicable and residue at removal. The observations should be compared with a control sample, without assuming a fixed service life.
Write Acceptance Criteria Before Bulk Production
Record permitted bond dimensions, strand count, net hair amount, color and any agreed installation test in the final specification. Marketing terms describing keratin origin or grade are not a substitute for physical sample evidence.
Discuss Your Hair Extension Sourcing Project
Send Vayora your attachment system, target shades, lengths, pack specifications and reference samples.
Request a QuoteFrequently Asked Questions
Does “Italian keratin” prove bond quality?
No. The label alone does not verify composition or performance. Approve the actual bond with the intended tools and installation method.
Should I-Tip and U-Tip use the same tests?
No. Compare each tip design against its intended installation system and approved size, shape and strand loading.
What evidence belongs in the approval record?
Keep bond measurements, close-up photos, strand counts, sample results and a signed reference specification, subject to final project requirements.
Related Guides
Connect Bond Approval With Lot Control
Record the approved bond dimensions alongside strand weight and count methods. Include the affected tip SKUs in bulk inspection coverage.