René Furterer Triphasic Active Length Serum is a leave-in strengthening treatment designed to support healthy hair growth and improve the quality of hair length.
Formulated with an energizing and fortifying complex, this lightweight serum helps reinforce the hair fiber from root to ends while improving resistance to breakage. Its fast-absorbing, non-greasy texture delivers targeted care without weighing hair down.
Hair appears stronger, more resilient, and better protected, allowing lengths to grow healthier and longer over time.
Key Benefits
- Helps strengthen hair fiber and support length growth
- Improves resistance to breakage
- Reinforces hair from roots to ends
- Lightweight leave-in formula with no rinsing required
- Leaves hair stronger, smoother, and more resilient
How to Use
Apply evenly to towel-dried or dry hair, focusing on scalp and lengths. Do not rinse. Use daily or as part of your Active Length routine.
Ideal For
- Weak, fragile, or breakage-prone hair
- Hair struggling to grow longer
- Strengthening and length-supporting care
- Daily leave-in treatment









