When you color your hair, you are damaging the hair structure just a little bit in order to have a pretty new color. In fact, this is the reason why we see so many people who use strengthening hair care products. After all, it’s still a question: is biotin and collagen shampoo good for colored hair, the short answer is: Yes, but with a catch.
The process of coloring the hair requires the opening of the hair cuticle and changing the proteins inside. This results in hair feeling "soft" or thin most of the time.
If you have bleach or lightened hair, this "band-aid" is a must for you. It rewinds the "loss of elasticity" that the hair chemicals cause.
While collagen is effective for gaining hair volume, it may be "weighty." If you are a person with thin and colored hair, daily use of these hair-care products may result in hair that is heavy or even oily. What I would suggest? In my opinion, you should utilize your biotin and collagen shampoo not more than twice a week as a "treatment," and apply a light, hydrating shampoo the rest of the days.
In a nutshell, biotin and collagen are perfect partners in the fight against hair coloring induced damage; nevertheless, they do not literally "shield" the color. Plus, the best of both worlds can be achieved only if your bottle is really a "Sulfate-Free" one.
Q: Will it strip my hair color?
If only it contains sulfates (such as Sodium Lauryl Sulfate). The biotin and collagen parts of your regimen are safe in terms of retaining pigment.
Q: Can I use it on bleached hair?
Definitely! As a result of the bleach, hair becomes a protein-poor substance. Thus, the collagen in these shampoos helps an easy strengthening process and less "stretchy" type of hair feeling.
Q: Does it help with hair growth?
Biotin is a good hair-health factor; however, shampooing with it is not a method that promotes hair growth as per scientific studies- although, hair may look thicker than before.