Tonic
A water-light daily leave-in that supports microcirculation at the scalp and reinforces strand integrity from the root up.
Free US shipping on $80+ · 50% off your first order
- ·Size: 100 ml · 3.4 fl oz
- ·Use: Daily on damp roots, after washing — no need to rinse
- ·Works with: Booster Oil (3 nights/week), Finish Serum (on ends)
What it actually does.
Most 'tonics' are perfumed water in a fancy bottle. Ours uses caffeine (a vasodilator that clinical research has shown to enhance hair shaft length in vitro), niacinamide for shaft strength, and biotin-rich biotinyl-tripeptide. It's water-light, dries clear, and works under any styling product.
Spray it directly on the scalp along your normal partings, gently massage in for 30 seconds, then style as usual. No rinse, no heaviness, no flakes.
Four steps,
once you've got the rhythm.
Towel-dry hair
After washing, blot to damp — not soaking wet. The tonic absorbs best on hair that's still slightly humid.
Mist along partings
Spray 6-8 pumps directly onto the scalp. Move the nozzle along your natural part and the crown area.
Massage 30 seconds
Fingertips, gentle pressure. Massage helps circulation and ensures even coverage on the scalp.
Style as usual
Don't rinse. Layer your normal heat protectant or styling product on top. The tonic dries clear and won't interfere with finish.
Five actives,
nothing extra.
Full INCI on the label, no hidden fragrance complex, no greenwashed marketing. Here's exactly what's in the bottle and why.
Caffeine (1.5%)
Vasodilator. In vitro research suggests enhanced hair shaft elongation. Penetrates the follicle within 2 minutes of application.
Niacinamide
Strengthens the hair shaft, improves scalp barrier. Gentle on sensitive skin.
Biotinyl-tripeptide-1
Targeted signal peptide. Supports keratin production at the matrix level.
Panthenol (Pro-Vitamin B5)
Humectant that binds water inside the shaft — adds flexibility and tensile strength.
Green tea extract
Polyphenols protect against oxidative stress. The good free-radical neutraliser.
Real people, real timelines.
Works under styling cream
"I was worried it would interfere with my curl cream. It didn't. It dries in like 2 minutes, totally invisible, then I scrunch in my cream on top. My fine 2c hair stays bouncy not flat."
My favorite of the three
"I started with Booster Oil but Tonic is the one I never skip. It's fast, it's the daily anchor. I notice if I miss two days — my scalp feels dry/itchy."
Caffeine tingle is real
"Light cooling sensation when applied. Not unpleasant, just present. Tells me something is happening. Strands feel stronger now — less easy to break."