A pack weight tells you about the listed sale unit. It does not independently show how full a finished hairstyle will look or how many packs your own installation requires.
Read the units correctly
For example, Genius Weft is listed as 100g per pack, while Seamless Tape is 50g with 20 pieces forming 10 pairs. These are product facts with different formats behind them. Equal total weight does not make two formats interchangeable.
Explain the appearance goal
Show the installer the fullness and shape you want. Ask them to recommend the appropriate product and quantity for the actual plan. Do not infer a full-head requirement from a pack photograph or transfer another wearer’s order to yourself without assessment.
Check the calculation after the recommendation
Once the quantity is specified, verify the arithmetic using the listed unit. Keep weight, pieces, pairs and packs in separate columns. If a recommendation is ambiguous, ask before buying. Calculation can check an order, but it cannot substitute for the professional judgment that produced the plan.
A practical detail to record
For arithmetic only, two listed 50g tape packs total 100g; that equals the stated weight of one 100g Genius Weft pack, not the same installation. The formats remain different. A comparison sheet should therefore keep product, weight, piece count and recommended purchase quantity in separate columns rather than ranking packs by weight alone.
Decision checklist
- Listed unit and format identified.
- Visual goal assessed separately.
- Arithmetic checks recommendation, not suitability.
Relevant product guidance
Luxeline seamless weft extensions; Luxeline seamless tape extensions.
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