Fiberguard® Preservo® Strengthening Serum (Step 1)

Preservo® Strengthening Serum (STEP 1) is applied to the whole head just prior to relaxing to protect and condition hair during chemical processing.

Size: 8 fl. oz


  • Contains Fiber Strengthening Complex (FSC), a revolutionary conditioning complex exclusive to Avlon that penetrates deep within the hair shaft while cuticles are open during relaxing.
  • Consists of special strengthening and conditioning ingredients that minimize swelling, preserve strength and restore hair’s natural luster.



  • Retards breakage and shedding.
  • Helps hair retain tensile strength and elasticity.
  • Can be used prior to color services.
  • Decreases hair porosity.
  • Helps weak, brittle hair ends become more pliable.
  • Conditions hair as it moisturizes and adds volume.
  • Imparts a smooth, silky feel to hair.