Warm Brown (4), Straight and Glossy
Shade 4 is the brightest solid brown in the range, one level up from shade 3 — for the full comparison, see our shade 3 K-tips. The straight finish is what makes shade 4 worth buying: light travels along an unbent strand and reflects in one direction, so warmth reads as gloss rather than scattered highlight. These straight hair extensions are cuticle-aligned single-donor Slavic Remy, strands running root to tip in one direction — the base of the range's warmest brown hair extensions.
Keeping Warm Brown From Turning Brassy
Extension hair never receives scalp oil, so it dries and oxidises faster than growing hair — and a warm brown has further to fall than a cool one. Sun, chlorine, hard water and sulphate shampoo all push shade 4 toward orange. So: wash sulphate-free, use a chelating rinse if the water is hard, and neutralise warmth with a blue-toned gloss rather than a purple one — purple targets yellow in blondes and does almost nothing to orange in brunettes, which is the mistake most clients make. Deposit-only toning and darkening are safe; bleaching is not. Heat is safe to 390°F, but every pass accelerates fade, so treat that as a ceiling, not a target. These genius weft hair extensions last 9-12 months, and colour care is what decides whether the client gets the full year or six good months — the payoff of choosing weft hair extensions over a shorter K-tip cycle.
Who Should Order the Shade 4 Straight Weft
Warm brunettes at level 4 who want length and shine without a colour service, and the client who blow-dries smooth and wants that gloss to hold. Each weft is 24 inches wide and cuts to the exact width of the row without unravelling; installs by beaded row or sew-in; the client needs 5-6 inches of natural hair to hide the track, with a move-up every 6-8 weeks. For clients who air-dry with natural movement, point them to the wavy warm brown (4) genius weft. As genius weft extensions go, this is the sleek, glossy pick — and PRO accounts receive 20% off every order.
Frequently Asked Questions
Will warm brown extensions turn brassy over time?
They can — sun, chlorine and hard water push shade 4 toward orange, but sulphate-free care and a blue gloss keep it true.
Should I use purple shampoo on brown extensions?
No — blue tones neutralise orange; purple targets yellow and does little for brunette warmth.
Can I tone or darken this weft?
Yes, deposit-only toning and darkening are safe; bleaching is not.
How long will the hair last?
9-12 months with proper colour care and sulphate-free washing.
What is the difference between shade 3 and shade 4?
Shade 4 is one level lighter and brighter; see our shade 3 K-tips for the full comparison.
