Studio shot of Tintology products: a jar of True Tone Pigment (medium brown powder) next to a bottle of G2 Fuse Activator Gel (clear liquid) with a silver pump dispenser.

BROWS THAT WON’T BUDGE FOR 3 DAYS.

Tired of constant touch-ups? Meet the Fuse Core Kit—Tintology's lab formulated gel fuses pigment to skin,
and hair for a smudge-proof, natural finish.
Resists sweat. Resists humidity. Resists fading.

Shop the Kit
Quick-Set Gel
7 Customizable Shades
3-Day Smudge-Proof Wear
Science-Driven Brow Technology

How It Works

Step 1

MIX

Close-up studio shot of a cosmetic mixing process: a pump of clear Tintology G2 Fuse Activator Gel is blended with a mound of dark brown True Tone Pigment powder using a small metal spatula.

Mix your perfect shade.
Combine a pin drop of True-Tone pigment with G2 Activator Gel.

STEP 2

DEFINE

Close-up on a person's eye as a dark, angled makeup brush applies the finished Tintology product to fill in and define a natural, dark brown eyebrow.

Apply your custom blend. Our gel sculpts, fills, and defines in minutes. Go natural or go bold. You're in control.

STEP 3

SET

Close-up of a perfectly defined, full, dark brown eyebrow and eye, showcasing the final look achieved after applying the Tintology product.

Sets in 60 seconds. Through sweat, humidity, and wear —color stays put for up to 3 days.

See the Tintology Difference

Before After
Before
After

"This product covered my invisible blonde brows. Now my brows frame my face!"

— Hailey M.

Expert Matched Shades

Our pigments are formulated to match diverse hair colors and skin tones.
Mix. Blend. Create your unique shade.

Clean & Science-Backed

No fillers, no guesswork. Every formula tested for stability, pigment power, and skin safety. Precision cosmetic science.

100% Vegan & Cruelty-Free

Proudly formulated without animal-derived ingredients or animal testing. Beauty that's kind to brows and the planet.

Loved by Brow Enthusiasts Everywhere

Unfiltered feedback. Unmatched results.
Shayla W.

"My signature shade is S2-Copper. It sticks to the skin and hair covering my dark brown hairs."

— Shayla W.

Jamie W.

"The swatches are beautiful. And they dry down matte which is a plus. T1, T2, T3, S1, S2, T4"

— Jamie W.

Michiela J.

"It’s day 3 and my brows still look pretty good. I just get up and go."

— Michiela J.

Sarah M.

"Honestly, I'm impressed! This is after my boxing class."

— Sarah M.

Lillie H.

"My brows really last for 3 days. My new fav product."

— Lillie H.

Mariena S.

"Shipping was fast!"

— Mariena S.

Toni G.

""Love! FYI you only need a tiny bit of pigment for a deep color.""

— Toni G.

Amanda K.

"12-hour shift and my brows look great. Easy to use. Highly recommend!""

— Amanda K.
  • Tintology True Tone Pigment brow swatch collage showing 7 shades (Honey Blonde, Light Brown, Medium Brown, Deep Brown, Black Brown, Auburn, Copper) expertly applied to models across various skin tones, with the Tintology logo and product packaging visible in the bottom row.
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TINTOLOGY

FUSE Core Kit: 3-Day Smudge-Proof Brows

$38.00 USD
$52.00 USD $38.00 USD
Sale Sold out
Shipping calculated at checkout.
Color: T1- Honey Blonde

*Fast Arrival: Orders Ship Same/Next Business Day.

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The TINTOLOGY™ Difference

Benefits Our Product Generic
Brow Coverage: Bonds to both brow hairs and skin ✓ ✕
Wear Time: Lasts for days without flaking ✓ ✕
Confident Boost: Sweat-proof, smudge-proof ✓ ✕
Natural Finish: Dries matte, never stiff ✓ ✕
Proudly made in the USA 🇺🇸 ✓ ✕