How Many Grams of Hair Do I Need? That's the question . The other question is , Is it possible to have too much hair- and the answer is YES.
Here is a guide for how many grams of hair you will need when buying hair extensions:
16-18" Extensions you'll need 50 -80 Grams of hair if your only looking for fuller hair or adding highlights or lowlights. If you're looking to add length, 100-150 Grams should be good for a full head.
20"-22". Again 50-80 Grams should be good to thicken hair or add that pop of color for hair that is already this length. 120-160 Grams is usually good for this length for a full head.
24-26". If you're buying hair this long, chances are you are buying for length. Usually 160 - 240 Grams of hair is good for this length. for a full head.
Hair 28" and longer should be 200-300 Grams of Hair. Anything less will be hard to blend and you want to make sure you have thickness through the ends of your hair. No one likes thin, straggly ends.
This is an idea on how much hair you need. If you add a ton of hair, you take the chance of not maintaining the hair as well as it should be maintained. Too much hair can be harder to wash and remove buildup , properly moisturize with conditioners and masks , and thoroughly dry each of the wefts. Too much hair without the proper care and maintenance can be subject to bunching and tangling.