thickening serum

We're not full of…

  • What: Wearing thin? This nightly, leave-in treatment fattens and fortifies over time for thicker, stronger strands and fuller hair (really).
  • Who: Those wearing thin, the fine, and the ultra-fine.

    When: Nightly. Twice-daily for the ultra-fine.

    How: Before bed, pump serum into palms 2 or 3 times; work into roots and through damp or dry hair. Longer hair types should pump again and be sure to smooth through ends.

  • Algae Extract: strengthening, luster, body
  • Cholesterol: strengthening, conditioning, softness
  • Salvia Sclarea (Clary Sage) Extract: energy
  • Serenoa Serrulata (Saw Palmetto) Fruit Extract: hair density
  • Caffeine: soothing, conditioning, anti-irritant, anti-oxidant
  • Betula Alba (Birch) Extract: anti-irritant, anti-oxidant
  • #Bumbleandbumble Shop and share all your Bumble looks.
    offer details
    *Free standard shipping and samples with any order will automatically be applied at checkout. The applicable purchase amount does not include shipping and handling or sales tax. Only authorized orders will be processed and shipped. Offers cannot be combined, only one offer allowed per order. We reserve the right to cancel any order due to unauthorized, altered or ineligible use of offer and to modify or cancel any promotion due to system error or unforeseen problems. We reserve the right to substitute any free item offered with an item of equal or greater value. Ongoing offers are subject to change without notice.