I've heard that dying bleached hair a darker color will help it...?

Question

because the dye coats color stripped hair strands and the pigment acts as a protective barrier. Is this true?

Answer 1

no,No,NO! - I Don't Know Where You Are Hearing This But, THEY ARE WRONG! This Will Only Futher Damage Your Hair And Possibly Leave It With A Fast Fading Off-Tone 'Blotchy' Color That You Will Have To Fix. Get A Good Reconditioning Treatment Like L'Oreal® The HAIR FIXER™ Found In Beauty Supplies And NEXXUS® Emergencee™ Treatment To 'Fill' Any Damaged Areas. Use The Most Conditioning Shampoo You Can Find Like NEXXUS® Color Assure™ OR Sleektress™. Follow With A Good Conditioner Like NEXXUS® Color Ensure™ Or Headress™

Good-Luck!!

Answer 2

No its actually not true. My cousin is studying cosmetology in collage and she says:
No. Dying color stripped hair is not the answer. A professional haircut will ensure that your hair is free from damaged and spit ends and will make your hair look healthy. Seeing a professional will also give you the opportunity to get the right cut for your hair type and texture. Follow up visits which include regular trims will also guarantee that your hair will look and feel its best.
Hope I helped in some way!