Welcome to Theory of Me
A modern med spa experience in Ontario, CA
Your Journey To Self Discovery And Self Care Begins Here.
Discover the Difference
Theory of Me Med Spa specializes in natural results that enhance— not change your features. Our personalized approach ensures you feel refreshed, confident, and completely yourself. See why we’re different and experience aesthetics designed around you.
Personalized, One on One Consultation
Every appointment begins with you. Our providers take time to understand your goals, concerns, and lifestyle before recommending any treatment.
Natural, never overdone Results
Our philosophy is simple: enhance, don’t alter. We specialize in subtle, balanced results that highlight your natural features and leave you looking refreshed— never frozen or overfilled.
Medical Grade products & advanced techniques
From injectables to skincare, we use only high-quality evidence based products & latest techniques to ensure safe, effective, and lasting outcomes.
A comfortable and welcoming space designed for you
We’ve created a calm, modern environment where you can relax and feel cared for. Whether it’s your first treatment or your favorite self-care ritual, our space is designed to make you feel at ease the moment you walk in.
Our Services
Our curated selection of facial treatments, injectables, and skin therapies are designed to rejuvenate from within, revealing radiant, healthy skin that reflects balance, confidence, and self care. At Theory of Me, we celebrate individuality—because beauty looks different on everyone.
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At Theory of Me, our injectables enhance your natural beauty with subtle, balanced results. From neurotoxins like Botox & Dysport and dermal fillers from Restylane, Revanesse, and Juvederm, each treatment is customized to refresh your look.
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Our facials and chemical peels are designed to restore balance, hydration, and radiance to your skin. Each treatment is fully customized- whether you’re targeting dullness, acne, fine lines, or simply want a healthy glow.
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Our medical weight loss program is designed to help you reach your goals safely and sustainably. Each plan is personalized based on your health, lifestyle, and lab work to ensure real, lasting results.
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At Theory of Me, our advanced skin rejuvenation treatments including PRP, and PRFM are designed to restore your skin’s natural radiance and improve tone, texture, and elasticity.
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Biostimulators like Sculptra and Radiesse work by stimulating your body’s natural collagen production to restore volume, firmness and youthful structure
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Microneedling uses tiny precise needles to rejuvenate the skin from within by triggering your body’s natural healing response. Over time, it enhances skin texture, minimizes imperfections, and promotes a healthy glow.
the theory behind us
At Theory of Me, our mission is to empower confidence by enhancing natural beauty through personalized, science-based aesthetic care. We believe that beauty isn’t one-size-fits-all — it’s a theory that’s uniquely yours. Every treatment we provide is thoughtfully designed to highlight what makes you you, blending artistry, precision, and advanced medical expertise to achieve results that look effortless and feel authentic.
Left to right— Dianna, Nicole, Stella, Marina, Areli
We’re here to remind you: your beauty has always been there. Our job is simply to bring it to the surface—with expertise, intention and the theory of me touch.
Whether you’re here for a quick refresh or a full glow-up, we’re here to make you feel like the best version of yourself.