Read what the breakage number measures.
The test conditions belong next to the headline.

Find out what the test actually measured

Did they count broken fibers, measure combing force or measure how hard it was to snap a strand? Those are three different things. None of them means thicker hair at the scalp, new growth or a fiber restored along its whole length.

Check the evidence covers the bottle in your hand

Look at the named formula, the products used together and the order they went on. A result from shampoo plus conditioner doesn’t describe the shampoo alone. Evidence for one ingredient, an older formula or a different product has to be tied to this bottle first.

Two big percentages use different baselines

• Find out what each product was compared with, whether that was untreated hair, a shampoo with no conditioning or another whole routine.
• Check the hair’s state and the test conditions too.
• A bigger number from a different comparison can’t rank the two products fairly.

The small print is missing or buried

• Hunt for the footnote or the full claim explanation, and ask the brand for anything that’s missing.
• Write down what you still don’t know.
• You can buy a product for a plain conditioning job without taking an unexplained strength number on trust.

Your hair does feel easier to comb

• That’s a real and useful thing to notice.
• Just keep it separate from a claim about the fiber being stronger.
• Note the comfort, the snagging and the routine you used, and resist pulling or over-brushing strands to test them.
• Your bathroom can’t reproduce a controlled breakage test.

Buy slip for a real handling problem

Compare the thing you’re tempted by with the conditioner that already works. An anti-breakage headline doesn’t mean you need more product or another step.

Browse rinse-out conditioners. For conditioner recommendations, share where your hair tangles and which products you have tried.

Count the whole routine, not one bottle

Look at the directions, the companion products it expects, the time and the cost against what you actually want. If the claim depends on a system you wouldn’t use, one bottle from it won’t give you the same result. Keep any treatment restrictions in place.

Browse rinse-out masks. For mask advice, share your treatment history and where your usual conditioner falls short.

1. Handle gently instead of testing strength

For ordinary snags in loose hair, get it to the wetness that suits your pattern and hold a section you can manage. Start at the ends and stop at resistance. Don’t add comb strokes to count breaks or pull strands until they snap.