The Standard of Modern Beauty

Located in coastal North County San Diego, Addendum specializes in luxury hair transformations. Our master colorists and extension specialists deliver precise, beautiful results that other salons can't replicate. Our wefts are engineered for superior density and comfort, reinforced attachment sites create seamless, natural movement while remaining lighter and less bulky than anything else available. Every weft is designed for a customized fit that disappears completely.

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San Diego's first salon with a complete, proprietary line of luxury hair extensions. 

Designed with you in mind, every step of the way.

behind the brand

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Founded by master stylist Lisa Ha, Addendum was built on a commitment to technical excellence and uncompromising luxury. 

Lisa specializes in precision cutting and seamless extension integration. Her approach prioritizes wearability—transformative results that look beautiful and work with your lifestyle, not against it.

how you can find us

12853 El Camino Real Ste 104
San Diego, CA 92130

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The Standard of Modern Beauty

Addendum Salon specializes in luxury extensions and custom color. Our team of master level artists takes a thoughtful, personal approach to every guest. With our own extension line and premium products in-house, every detail is carefully considered. The result is seamless, refined hair that feels effortless, natural, and truly yours.

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The Salon

Extensions

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