6. NEVER, EVER COLOR YOUR HAIR AT HOME
It depends: The rule here—choose a tone based on your natural hair color. According to stylists, you can color at home only if you’re darkening or lightening one or two tones or retouching your roots. Leave any drastic changes to the professionals. No time or money to go to the salon? Keep an eye on purple/silver shampoos to tone down any brassiness or try using “glosses” every three weeks.