40 E. 21st Street, New York, NY
Your confidence deserves expert care. Discover refined, natural results with our specialized aesthetics and wellness providers in the heart of Flatiron.











Discover a fresh perspective on your well-being in the heart of Flatiron. Grounded in a female-led vision, we specialize in treatments that subtly enhance your natural features, delivering results that feel authentically you. Embrace looking and feeling your best, with a refined touch and an effortless ease, right here in New York City.


noun: a magical process involving creation, transformation, and combination
the number of facial muscles

From the instant you step into our Flatiron clinic, your individual experience becomes our focus. Discover a welcoming space designed with a touch of elevated comfort and effortless style. Our expert aesthetic providers prioritize listening to your unique desires, guiding you through tailored treatments to enhance your specific features. Our goal is to leave you feeling refreshed, self-assured, and completely at ease in your own skin.

Our skilled injectors approach neuromodulator treatments, including Botox, Dysport, and Letybo, with precision and artistry, softening lines, enhancing facial harmony, and elevating your natural expressions for a refreshed, authentic appearance.

We blend expertise with a balanced approach to enhance your natural beauty. Using dermal fillers, our skilled injectors subtly accentuate your facial features with precision and care, ensuring a natural look that truly reflects who you are.

Weight management is a personal journey. At our Flatiron clinic, we offer a medically guided and holistic approach tailored to your unique body, goals, and lifestyle to nurture every aspect of your well-being.

Enhance healthy hair growth with our PRP treatments, collaborating with your body to restore balance and vitality.

Boost your skin's collagen production with advanced microneedling, refining texture for a youthful radiance from within.

Unleash your skin and hair's natural glow with PRP treatments. By harnessing the power of your body's own growth factors, PRP encourages rejuvenation from within.
Nicci Levy founded Alchemy 43 after years working inside the cosmetics industry, recognizing a need for a new kind of experience—one that felt elevated yet approachable. For Nicci, aesthetic care should never feel like “fixing” but rather enhancing what already makes you unique.
At our Flatiron studio, Nicci's vision comes to life through subtle, natural treatments delivered by expert injectors. It’s a space where confidence grows without overcorrection, and where results are designed to integrate seamlessly into your lifestyle.

In the heart of Flatiron, the Alchemy 43 team blends artistry with medical precision. Each provider is carefully selected for their advanced training and specialized skill in injectables.
Our philosophy is simple: empower clients by delivering subtle enhancements that elevate, never overwhelm. With a commitment to refined results and a seamless client experience, our team ensures that every visit leaves you feeling confident, cared for, and authentically yourself.
Our science-driven wellness treatments are designed to work with your body, seamlessly blending holistic balance with innovation. From physician-guided weight management programs to regenerative therapies that renew from within, our Flatiron providers deliver care that refines both appearance and overall vitality. Here, wellness isn’t a trend; it’s an intentional, elevated approach to feeling and looking your best.


Enjoy monthly savings on your favorite services and products, receive special discounts that aren't available to non-members, and enjoy additional perks designed just for you.
We know your calendar is full of moments worth celebrating. Our special event prep treatments are designed to highlight your best features and help you feel your most confident. Whether you’re preparing for a wedding, an important presentation, or a night out in the city, our expert providers tailor your plan so you arrive polished, radiant, and completely camera-ready.

We know that confidence is even better when it’s shared. Invite your friends to experience Alchemy 43 and enjoy rewards together. For every friend who books using your referral link, you’ll receive $100 toward your next treatment—and they’ll enjoy savings on their first visit. Because glowing skin looks even better when it’s part of your circle.










