Machine Weft Density Explained: What "Full" Really Means
"Full" means different things to different suppliers, and machine weft density is one of the most misunderstood specs in the entire industry. After 21 years assessing density professionally, here's what actually determines it.
PART ONE: What Density Actually Measures
Density refers to how tightly hair is packed along the weft track — not the total weight or length of the bundle. A weft can be heavy in total weight but still low-density if the hair is thinly spread across a long track.
PART TWO: How to Evaluate Density Before Buying
- Check strand thickness per inch — a genuinely full weft looks consistently dense along its entire length, not just in spots
- Compare weight relative to track length — shorter wefts with the same weight as longer ones will read denser
- Look for gaps — any thin or sparse sections indicate lower overall density
PART THREE: Density and Your Desired Result
| Goal | Density Recommendation |
|---|---|
| Natural, everyday volume | Moderate density spread across more rows |
| Maximum fullness | Higher density, potentially double weft |
| Subtle blending near the part | Lower density near the crown, fuller toward the back |
"'Full' on a label doesn't mean anything until you actually see the weft in hand. Density is something you have to verify, not just trust."
BOTTOM LINE
Real density comes down to how tightly hair is packed along the weft, not marketing language on a label. Learning to evaluate this yourself protects you from disappointing, thin-looking results.
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