BEAUVOIR Professional Hair Extensions
Genius (Micro) Weft 24" 94g Single Donor Virgin - #1B Midnight (aka Off Black)
Used by over 12,000 licensed extension professionals nationwide.
Most stylists use 2 wefts for optimal length and fullness.
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Beauvoir genius weft – 24” Single Donor Virgin in color #1B Midnight
A study in shadow and length. Crafted from the top ten percent of the healthiest hair in the world and sourced entirely from one donor, the Beauvoir Genius Weft provides unmatched continuity from root to end. Ultra-thin, flexible, and nearly weightless, it delivers long, fluid movement with seamless invisibility.
Unlike most brands that outsource Genius Wefts to third-party workshops, Beauvoir produces every weft in-house under tightly controlled factory conditions. Because moisture causes polyurethane to cure, humidity and temperature must be disciplined at every stage. Our facility is calibrated for that control, and ventilated to protect our workers from harsh VOC exposure. The result is precision you can feel and performance you can trust.
Color #1B Midnight is a softly dimensional off-black—balanced, refined, and effortlessly natural.
The 24-inch Beauvoir Genius Weft contains approximately 94 grams of Single Donor Virgin hair per pack. Each pack includes two 20” wefts (40” total), delivering long, elegant movement with tonal discipline and softness.
Key Features
Key Features
- Single Donor Virgin hair for unmatched performance and continuity
- Genius Weft construction: ultra-thin, flexible, ideal for fine hair or stacking
- 94 grams per pack for lightweight, seamless density
- two 20” wefts per pack (40” total)
- made in-house—never outsourced—for consistent quality
- highest-grade polyurethane
- 20 layers of polyurethane (most brands use 10)
- humidity- and temperature-controlled curing
- ventilated factory environment reducing VOC exposure
- color #1B Midnight: cool off-black with refined brown undertones
- made from the top 10% healthiest hair in the world
- sourced entirely from one donor for tonal purity and softness
- tested for pH, porosity, moisture content, tensile strength, and strand diameter
- colored with pure pigment and warm-water processing for lasting tone and integrity
- ethically sourced, naturally aligned cuticle hair
Shipping
Shipping
Each Beauvoir order is prepared with precision and care, ensuring that every detail arrives in perfect form. Complimentary standard shipping (3–5 business days) within the US is included on all orders over $100.
For those who prefer a swifter delivery, expedited shipping options are available at checkout for an additional charge.
Care, Performance & Limitations
Care, Performance & Limitations
Beauvoir extensions are a professional product and must be installed by a licensed stylist. Performance and longevity depend on proper installation, maintenance routines, and the use of compatible, extension-safe haircare products. Normal wear, changes in texture, and variations in tone can occur over time. Improper care, harsh products, excessive heat, or incorrect installation can contribute to dryness, tangling, or reduced longevity. By purchasing Beauvoir hair, you agree to follow our care instructions and to review them with your client.
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GENIUS WEFT
Ultra-thin perimeter. Maximum flexibility.
A refined weft designed for seamless blending.
Thin enough to disappear. Strong enough to cut anywhere without unraveling.
Key Features
• Ultra-thin seam
• Can be cut without shedding
• Minimal return hair
• Flexible structure
• Lightweight density control
What Makes This Genius Weft Different
• Strength without bulk
• Seam integrity after cutting
• Top 10% healthiest donor hair
• Controlled manufacturing for proper weft curing
Installation Methods
• Sew-in
• Bead foundation with stitch