• Formulating

  Visible light absorber

  Posted by biochemist101 on August 1, 2017 at 9:19 am

  Dears, 
  I have a color issue. I used to use pink powder in my shampoo formula, but the color fades away when put in room light-visible light. I added Benzophenone-4 Uvinul but still the same fading.i searched it and foud that Uvinol absorbs UV only. Kindly advise a solution as I have Large amount of pink powder in stock. is there any chemical that protects against room light?? thank you in advance.

  crisbaysauli replied 7 years, 9 months ago 4 Members · 3 Replies
• 3 Replies

• 

  belassi

  Member

  August 1, 2017 at 2:08 pm

  Change your pigment.

• 

  Chemist77

  Member

  August 1, 2017 at 4:15 pm

  That cannot be prevented, check Lavanya range from Neelikon India.

• 

  crisbaysauli

  Member

  August 4, 2017 at 10:32 am

  @biochemist101 from my experience the FD&C Red 33 pink colorant is quite hard to maintain as it really has a tendency to fade away. Maybe Lavanya might solve your problem.

Log In to Reply