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Add deep, natural-looking length and fullness with our #1B Off Black 18 Inch 1.0g Nail-Tip (U-Tip) Hair Extensions. Made from Chinese Remy human hair, these individual extensions feature pre-bonded keratin nail-shaped tips designed for professional fusion application.
Each strand weighs approximately 1.0g, providing approximately 25g of hair across 25 strands. #1B Off Black is a very dark, natural-looking black shade with subtle brunette depth, making it particularly suited to hair that appears black without the intense depth of a true Jet Black.
Nail-Tip hair extensions are individual human hair strands supplied with a pre-bonded keratin tip. During fitting, the keratin bond is heated using a Hair Extension Heat Connector and secured around a small section of the natural hair.
At approximately 1.0g per strand, these extensions contain more hair in each individual strand than our lighter 0.5g range. The number and placement of strands should be chosen according to your natural hair density, existing length and desired finished result. Professional consultation and fitting are recommended.
These extensions are supplied in quantities of 25 strands. As a general guide, approximately 100–125 strands (4–5 bundles) may be used for a full-head application, while around 50–75 strands (2–3 bundles) may be used for a half-head application.
The exact quantity required can vary depending on your natural hair thickness, density, existing length and the amount of length or volume you want to achieve. We recommend discussing the required quantity with your hairstylist before ordering.
Nail-Tip extensions use a heat-fusion fitting method. The pre-bonded keratin tip is softened using a fusion heat connector and formed around an appropriately sized section of natural hair during application.
For detailed application instructions, view our Nail-Tip / U-Tip Hair Extension Fitting Guide .
Nail-Tip extensions should be removed carefully using the appropriate removal technique and products to soften and separate the keratin bonds from the natural hair.
For step-by-step removal information, view our Nail-Tip / U-Tip Hair Extension Removal Guide .
With appropriate maintenance, these extensions can be worn for approximately 2–3 months. The human hair can be washed and styled, but correct care of both the extensions and keratin bonds is important throughout wear.
Avoid applying direct heat to the keratin bonds and follow our Hair Extension Aftercare Guide for important maintenance information.
#1B Off Black is a very dark, natural-looking shade with a softer appearance than true Jet Black. Subtle brunette tones may become more noticeable when the hair is viewed in natural daylight.
Compared with #1 Jet Black, #1B Off Black is slightly softer and less intense. If your natural hair appears completely black through the mid-lengths and ends, #1 Jet Black may provide the closer match.
If your hair looks black indoors but reveals slight brown or brunette warmth outdoors, #1B Off Black may provide a more natural blend.
For the best colour comparison, check the extensions against the mid-lengths and ends of your natural hair in good natural daylight rather than matching only against the roots.
Need help choosing your colour? View our Hair Extension Colour Chart .
