The Standard of Modern Beauty

Addendum is a collective of experienced stylists working across color, extensions, and cutting, each bringing a deep understanding of hair as both craft and material. Our team works collaboratively, with shared standards around integrity, longevity, and real-world wear — not trends for trend’s sake.

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Let's meet the team behind Addendum Salon, and who you'll work with for your transformation.

Lisa Ha has spent over two decades in the hair industry, with the last fifteen years focused almost entirely on extensions. That focus began with her own personal journey. With naturally fine hair and a sensitive scalp, Lisa experienced firsthand what happens when extensions are done without enough care, understanding, or precision. At the time, very few people were doing them well, especially for clients who needed a gentler approach. Those experiences changed the direction of her career.

Instead of accepting what was available, Lisa began to study every method she could get her hands on. She learned the systems, tested them behind the chair, and then reworked them through the lens of her own needs and her clients’ comfort. If something did not feel gentle enough, she redesigned it. If something risked the integrity of the hair, she refined it. Over time, she developed an approach that prioritizes scalp comfort, hair health, and results that truly last.

Along the way, Lisa mastered the art of cutting and blending extensions, treating it as its own discipline rather than an afterthought. She is also deeply skilled in color, which allows her to create results that feel seamless, natural, and fully customized. More than any single technique, her greatest strength has always been her ability to listen. To understand the problem, translate it into a clear plan, and execute it with intention.

She still loves being behind the chair, especially when it comes to transformations. Her favorite clients are often the ones who have had bad experiences in the past or who have never quite felt like they were being heard. The more challenging the case, the more she enjoys the process. It is where she gets to bring together everything she has learned over the last two decades and use it to create something that finally feels right for the person in the chair.


Lisa Ha

At the core of Lisa’s work is the same belief that started it all. Hair should be beautiful, but it should also be comfortable, wearable, and healthy. And there is nothing more rewarding to her than hearing a client say, “You really listened. You understood. And you got it right.”

Lisa is also deeply proud of the salon she has built and the team behind it. She has created a space where care and character come first, where craft and education matter, and where the culture is rooted in doing what is truly best for the client. That environment is not accidental. It reflects the same standards she holds for her own work and the same values she brings to every part of the business.

While building her reputation as a master extension artist, Lisa worked closely with major hair brands who brought her in to help design and refine products. Being both behind the chair and involved in product development gave her a clear perspective on what was missing in the industry. That gap is what led her to create Addendum Hair.

Every product under the Addendum name is built with intention, care, and real world use in mind. The goal is simple. Give stylists better tools and better hair so they can take better care of their clients. Nothing is generic. Nothing is rushed. Each piece is designed to solve a real problem and to support the long term integrity of the hair.

Currently assisting Lisa Ha, I bring creativity and precision to every guest in my chair. With a background in sewing and fashion, I approach hair the way I approach design—where structure, detail, and artistry come together. I’m passionate about mastering extensions and developing cutting as a true specialty, focused on sculpting shape, enhancing movement, and creating styles that grow out beautifully and last. Outside the salon, you’ll find me at concerts, hiking local trails, or exploring new restaurants, always drawing inspiration from the world around me.

carlos

Addendums social butterfly. With 8 years in the hair industry, I specialize in lived-in color, smoothing treatments and am now offering extensions. Originally from North Carolina, I moved to California two years ago and love blending East Coast roots with West Coast style. Outside the salon, I’m all about coffee shops and music festivals. Whether you're looking for a subtle refresh or a total transformation, my goal is to make sure you leave the chair feeling confident and cared for. 

emmy

I’m a hairstylist with 9 years of experience specializing in lived-in color and extensions. My passion is creating natural, effortless styles that make clients feel confident and beautiful. Outside the salon, I love discovering new restaurants and bars, staying active through hiking, the gym, and Pilates, and finding inspiration in all things lifestyle and beauty

jennifer

I’m a hairstylist with over 5 years of experience, but my journey started even earlier—as a salon receptionist in high school, where I fell in love with the beauty industry. I specialize in color, men’s haircuts, extensions, updos, and special event styling, with a true passion for cutting hair. My dream is to become an educator and mentor, sharing the creativity and connection this industry brings. When I’m not behind the chair, you’ll find me investing in continued education, spending time with my family and my dog Finn, cooking up new recipes, hiking, or indulging in a little shopping.

Tori

Born and raised in France, I bring a spirit of hospitality and curiosity to everything I do. From a love of travel to a deep appreciation for artistry, l've been part of the salon since its opening — learning and growing under Lisa's mentorship.

Immersed in the world of extensions, my focus is on sustainability, seamless blends, and creating natural beauty that feels as effortless as it looks.

nam

I have 23 years experience in the hair industry , Originally from New Jersey, I have worked all over the US and in France with Jean Marc De Angelis and his wife learning French Balayage and hair cutting techniques. I was scouted out by Aveda Purefessioal Carolyn Miko and worked in Florida at the age of 16 and started working behind the chair while in school. My strong qualities are Blondes, Platinums and Red/Copper . And cutting Medium to Long Hair . When I’m not in the salon I love playing with my English Bulldog, Strawberry. 

michael

I started my career at A Robert Cromeans Salon and learned all of my technical skills from cutting, coloring, and styling from my experience as an assistant then stylist. I specialize in lived-in color, effortless looks/cuts, and simple but clean extension installations. I’m passionate about natural or effortless color, simple and timeless styles, and easy hair that feels custom fit for every client.

donnie

I’ve been in the salon industry for over 15 years, attracted by its creativity and diversity. I started my career in store management, which evolved into business-to-business sales, representing some of the biggest brands in our industry. But what I truly missed was being in the salon. Connecting with stylists, cultivating relationships, and helping them grow in their craft through education and support. Finding Addendum as my salon home has been the start of something amazing. A place where I can combine my love for business, my passion for people, and most of all my love for our industry. 

angelica

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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