Choose your method
01
K-TIPSSmall keratin-tipped pieces for natural movement and volume where you want it.
Best for
Fine to medium hair, and wearing your hair up.
Wear3 to 4 monthsFeelMost natural movementShop K-Tips
02
TAPESThin, flat panels that lie close to the head for a seamless, lightweight finish.
Best for
Fine or thin hair that needs a flat, lightweight option.
Move Up6 to 8 weeksFeelFlattest and lightestShop Tapes
03
WEFTSRows of hair for the most fullness and length. Choose Redefined or Classic.
Best for
Medium to thick hair, and the biggest change in volume.
Move Up6 to 8 weeksFeelMost fullnessShop Wefts
Not sure which method is right for you?
Ask usThe Menu
Find Your Shade
What are you drinking? Tap a shade to see it in every method.
Bees Knees
Blondes
Gin + Tonic
Blondes
Whiskey Sour
Blondes / Rooted
Prosecco
Blondes / Rooted
Mint Julep
Blondes / Rooted
Margarita
Blondes
Caipirinha
Blondes
Pina Colada
Blondes
Vesper Martini
Blondes / Rooted
Dirty Martini
Blondes / Rooted
Twisted Mai Tai
Browns / Rooted
Mai Tai
Browns / Rooted
Peach Bellini
Reds
Sidecar
Browns
Negroni
Browns / Rooted
Tequila Sunrise
Browns / Rooted
Aperol Spritz
Reds
Light N Stormy
Browns / Rooted
Dark N Stormy
Browns / Rooted
High Ball
Browns
Cuba Libre
Browns / Rooted
New Fashioned
Browns / Rooted
Old Fashioned
Darks / Rooted
Manhattan
Darks
Vieux Carre
Darks
Merlot
Reds / Darks
Espresso Martini
Darks
Black Magic
Darks
Best Sellers
Shop best sellers
2,500+Stylists using Addendum
1,200+Salons using Addendum
50,000+Wefts sold
Nearly 20Years behind the chair
Made by a stylistSold by the weft100% virgin hairCustom coloredPro pricing for stylistsMade by a stylistSold by the weft100% virgin hairCustom coloredPro pricing for stylistsMade by a stylistSold by the weft100% virgin hairCustom coloredPro pricing for stylists
Made by a stylistSold by the weft100% virgin hairCustom coloredPro pricing for stylistsMade by a stylistSold by the weft100% virgin hairCustom coloredPro pricing for stylistsMade by a stylistSold by the weft100% virgin hairCustom coloredPro pricing for stylists
Addendum Hair
Our storyBuilt Behind The Chair
01 Expertise
Made By A Stylist
Addendum Hair was created by Lisa Ha, a stylist with nearly two decades behind the chair who is certified in nearly every major extension method.
02 Accessibility
Sold By The Weft
Wefts are sold one at a time, so you buy the amount your hair needs and nothing extra.
03 Integrity
100% Virgin Hair
Silicone-free hair from responsible sources, custom colored into every shade on the menu.
THE RESERVE - Round Brush by Addendum Hair x Ibiza
Handmade with 100% natural boar bristles and a sustainably sourced cork handle, for shine and smoothing.
01 / 03
The wet hair routine
Three Steps After Every Wash
What to use from the moment you step out of the shower to finished, dry hair.
-
01 Out of the shower
Double Shot Leave-In CocktailWork it through damp hair from mid-length to ends before you brush. It softens, detangles and preps your hair for heat.
Shop Double ShotFrom $55.00
-
02 Detangle
The Proof Wet BrushMade for wet hair. Start at the ends and work up so it glides through without pulling at your extensions.
Shop the wet brush$45.00
-
03 Dry
The Reserve Round BrushNatural boar bristles smooth and add shine as you blow dry. The cork handle stays light in your hand.
Shop the brush$70.00
ON THE MENU 01 / 05
For Stylists
Addendum Hair Pro
Open an Addendum Hair Pro account for stylist pricing and perks.
- Pro pricingStylist-only rates
- First lookNew shades and launches
- Stock alertsLow stock notice ahead of time
- Monthly specialsPro-only offers
Where to next
Find Your Pour
Every shade on the menu, in every method.
NextShop All Hair→
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