Theory Hair Studio

Theory Hair Studio

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San Diego's Premier Hair Salon Specialized in Color and Hair Extensions || 619.822.2254 KERASTASE EXCLUSIVE SALON

Precision Haircuts, Personalized and Complimentary Haircolor, Specialty Services includes Hair Extensions, Eyelash Extensions, also, Wedding's Hair and Makeup.

Photos from Theory Hair Studio's post 04/30/2026

Our glass hair trio is every's hair MUST HAVES 💜

✨For the glossiest locks, add Mirror Rinse Glass Hair Treatment to your shower routine for glass hair in just 60 seconds.

✨Use Supershine Moisturizing Cream as your leave-in conditioner to soften hair and add shine.

✨After styling, apply Supershine Smoothing Wax Stick to tame frizz and add a glossy luster




Photos from Theory Hair Studio's post 04/28/2026

A classic long layer and buttery-California-blonde never goes out of style! It may be a relaunch of Caroline Bessette-Kennedy to remind some of us what's tried and true, but that true soft blonde is *always* a stable! Quiet luxury and timeless beauty.

Hair by Uyen













San Diego Hair Salon, 92101, Theory Babe

04/24/2026

Answer the call 📞












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02/26/2026

Soft S waves are having a moment in our salon! �This is my current go to finish for creating movement, polish, and a refined lived in look.
Using a 1¼ inch curling iron and subtle direction changes to enhance dimension without looking over styled. Style that gives hair the body and movements, bringing out tones and texture while giving beachy-carefree-vibe 🏝️🐚

Would you rock this style?




Photos from Theory Hair Studio's post 02/18/2026

Custom color + hand tied extensions designed for dimensional blonde hair and effortless volume and length.
Swipe to see what’s underneath.












San Diego hair extensions | hand tied extensions San Diego | natural looking extensions | luxury hair salon San Diego | Little Italy San Diego

Photos from Theory Hair Studio's post 02/05/2026

Oribe Gold Lust Nourishing Hair Oil is a game changer, especially during these dry winter months. This is the ultimate necessity during the Santa Ana winds in Southern California ☀️




02/02/2026

Soft S waves with intention.
This is my current go to finish for creating movement, polish, and a refined lived in look.
Using a 1¼ inch curling iron and subtle direction changes to enhance dimension without looking over styled. This type of wave gives hair the body and movements, brings out tones and texture.

Effortless, but considered.
Understated, yet chic.




Photos from Theory Hair Studio's post 01/22/2026

Soft, dimensional blonde paired with seamless hair extensions for added fullness and length.
Color by stylist herself, Cortney + Extensions by Uyen.




01/22/2026

We love a good color and hair extensions! Who's ready for a glow-up? 🙋‍♀️

12/28/2024

✨ Elevate Your Hair Care Routine ✨
Discover the luxurious Oribe Beautiful Color Collection—designed to protect and enhance your hair’s vibrancy. 🌿

Why settle for ordinary when you can indulge in premium care that’s as stunning as your locks? Whether you're maintaining your blonde brilliance or protecting extensions, Oribe’s high-performance formulas are a must-have.

📍Available exclusively at Theory Hair Studio. Stop by to grab yours or book an appointment to get pampered with our expert stylists. Bonus: Receive a free travel-size Oribe product when you spend $100+ on salon services from now until January 31!

💻 Link in bio to book your session!

✨ Grateful for You This Holiday Season ✨ 12/25/2024

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✨ Grateful for You This Holiday Season ✨ Thank you for choosing Theory Hair Studio to be part of your beauty journey. Your trust and support mean everything, and it’s been a joy to help you feel confident and radiant.

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Address


640 W Beech Street #1A
San Diego, CA
92101

Opening Hours

Tuesday 10am - 7pm
Wednesday 10am - 7pm
Thursday 10am - 7pm
Friday 10am - 7pm
Saturday 9am - 3pm