How to Test Hair From a Vendor Before You Order in Bulk

Order a sample, run these checks, and wear the hair yourself before you put a vendor's product in front of a paying customer. Every test on this page can be done at home with no lab and no special tools.

Get the free vendor list to test against →   or read the vendor reviews

Before anything else: order a sample and pay by a reversible method

Never make a bulk order your first order. Buy one or two bundles as a sample, and pay by credit card or PayPal Goods & Services, which give you a dispute route if the hair never arrives or is not what was described. Bank transfer, Western Union, Zelle, CashApp and crypto are irreversible — a supplier who will only take an irreversible payment has told you something important. This is the same rule we put at the top of the free vendor list: the names there are collected, not verified, so the sample order is your verification.

Dry tests: what to check the day the sample arrives

Look and feel

The ends should be full and the same texture as the rest of the bundle — thin, straggly ends mean short hairs were mixed in to pad the weight. Inspect for short pieces, split ends and discoloration, and feel how soft it is dry. Run your fingers through the bundle: it should not tangle or mat on a single pass.

Smell

Look for light to no smell. A strong chemical odor usually means heavy processing or a silicone coating applied to make rough hair feel smooth in the bag — that coating washes out, and the first wash shows you what you actually bought.

Cut a weft

Cut through a weft the way you would for an install and see if it sheds. A well-made double or triple weft holds its hair when cut; a weft that dumps hair from one cut will shed through its whole life.

The burn test (human vs. synthetic)

Clip a few strands and burn them over a sink. Real human hair singes, curls into ash and smells of burnt sulfur. Synthetic fiber melts into a hard bead and smells like plastic. This one-minute test catches the worst case — synthetic or blended hair sold as 100% human.

Wet and heat tests: the coating washes out here

Wash the sample with shampoo and conditioner, or co-wash it. A little shedding after the first co-wash is normal; matting, heavy tangling or a texture change is not. Then:

• Pattern test: if it is a wave or curl, unravel a section and see if it returns to its pattern after drying.
• Elasticity: gently stretch a few strands — healthy hair bounces back instead of snapping.
• Heat: flat-iron or curl a section and see if it takes heat and holds a curl.
• Bleach: if you or your customers color hair, bleach part of a bundle and see how light it lifts. Genuinely unprocessed hair lifts evenly; hair that has been dyed dark to hide mixed batches lifts patchy. Bleaching to #613 blonde stresses any hair, so expect some shedding from that test itself. Whether the hair is raw, virgin or processed matters most right here.

The wear test: the only test that predicts repeat customers

Members of our community who sell hair full-time wear a vendor's hair for one to two months before ordering stock. Sweat in it at the gym, sleep on it (once) without a bonnet, wash it weekly, and see what a customer's month looks like. Hair that still looks good after that — with the normal care routine — is hair you can stand behind. If you sell lace products, check the lace itself too: our guide to telling HD lace from Swiss lace covers that.

FAQ — frequently asked questions

How long should I test before placing a bulk order?

One to two months of actual wear is the community standard. It feels slow, but it is faster and cheaper than refunding a batch of bad installs.

Is a little shedding a bad sign?

Some shedding after the first co-wash is normal. Heavy shedding from cutting a weft, or shedding that continues wash after wash, is a construction problem and will not improve.

Can hair pass every test and still be a bad buy?

Yes. Vendors send their best hair to reviewers and sometimes to sample orders, so compare your bulk order against the sample when it arrives. Consistency between batches is the real product. That is also why star ratings and paid reviews tell you so little — and why this site's vendor list is published as names to test, not recommendations.

Do I need the bleach test if I only sell natural black?

It is still worth bleaching one section: uneven lift exposes dyed or mixed hair even when you never plan to sell blonde.

Ready to start testing? Pick names from the free list of 50+ wholesale hair vendors, check the vendor directory and reviews, and order samples — never stock — first.