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DIY Hair colouring hydroxides vs peroxide % Answered

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.


What do you mean by "less invasive"?

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?

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