SickScience PowerCycle Exosome Hair Growth Serum – Lightweight, Fragrance-Free, Silicone-Free 60mL

Overview

SickScience PowerCycle Exosome Hair Growth Serum is a lightweight, leave-in scalp treatment designed to improve the appearance of fuller, thicker hair. Built around NX35 exosome technology, this vegan, fragrance-free formula aims to deliver active ingredients to the scalp while remaining gentle enough for most hair types. The 60 mL bottle fits easily into daily routines for both women and men, without the heaviness of oils or drug actives.

Key advantages

• NX35 technology with billions of exosomes delivers caffeine, niacinamide and peptides to the scalp surface for a lightweight, non-oily serum.
• Clean, vegan and sensitive-safe — silicone-free, dye-free, paraben-free and cruelty-free; suitable for color-treated hair.
• Non-sticky, thickening action helps fibers appear fuller with touchable lift at crown and part.
• Simple leave-in use: shake, apply two to three droppers to clean scalp, massage, then let dry; use morning or night.
• Dermatologist-tested and gentle enough for sensitive scalps; formulated without fragrance for everyday wear.

Technology & formulation

The serum uses advanced NX35 technology, pairing exosome-like signals with caffeine, niacinamide and peptides to support the scalp surface. The result is a lightweight formula that supports the appearance of density without oils or drug actives.

How to use

• Shake well before use.
• Apply two to three droppers to a clean scalp, focusing on thinning areas.
• Massage gently and allow to dry; style as usual.
• For best results, use daily in the morning or evening; PowerCycle continues to work between washes.

Timeline you might notice

• Some users report improved density within 4–8 weeks.
• In supported testing, thicker diameter was observed on average by about 29%.
• Longer, stronger hair was noted by a portion of users over time.

Additional notes

The formula is fragrance-free, dye-free and parabens-free, vegan and cruelty-free. It is gentle on color-treated hair and suitable for sensitive scalps, blending seamlessly with other styling products without leaving a heavy residue.

Awards and trust

PowerCycle was recognized as a 2025 Men’s Health Grooming Award Winner for its clinically inspired approach to scalp care, reinforcing its appeal to dermatologists and consumers alike.