DIY Hair colouring hydroxides vs peroxide %

DIY Hair colouring is a confusing issue, can you help me choose the less invasive?

One product lists no more than 17mg/ml ammonia and no more than 90mg/ml of hydrogen peroxide in 48 ml 

The other lists not more than 30G/L of ammonium hydroxide in 60ml 
All comments welcome and appreciated.

Kiteman3 years ago

What do you mean by "less invasive"?

Kombigirl2 (author)  Kiteman3 years ago
Less invasive to the hair, the least damaging to the hair, the least de- hydrating.
Comparing the chemicals used, the strength ratios in the total amount of ml's per bottle.
Can you help?
rickharris3 years ago

Peroxide is horrendously BAD for your hair. If you must - use a modern ballanced hair colourent.