12. Why does the 2nd generation FULLY hair building fibers is durable than the 1st generation?

The 2nd generation FULLY hair building fibers is a different powder shape compare with the 1st generation.
The fiber is no longer dusty, in fact, the fiber is made slimmer, longer, softer and lighter, in addition, the sifter is no longer the double sifter, it's special designed with fine cone shape round holes, the fiber won't come out in groups, it come out with proper amount, therefore, it has better dispersibility, Every applying is fiber saving, yet the effect is better.
Compare with the 1st generation hair fiber, 1 bottle of 23g 2nd generation hair building fibers is equal to 1 bottle of 30g 1st generation hair fibers.