Nitro Gel Duo - #255 deep allowing colorists to custom-blend lighter

allowing colorists to custom-blend lighter levels or soften pigment density

Does this product have a strong ammonia smell

and reliable customer support

Is this developer compatible with other professional hair color brands

Nitro Gel Duo - #255 deep allowing colorists to custom-blend lighterNitro Gel Duo Nitro Gel Polish & Nail Lacquer Duo is a professional quality, highly pigmented, and long lasting gel polish, paired with matching nail lacquer to easily match the gel manicure set with a pedicure or touch ups. Nitro has a new and improved formula for gel and lacquer: easy to polish and fast soak off. Their matching duo colours can last up to 14 days no need to worry about the chip, break or peeling. Perfect for both beginners and