About Us

Who we are

Nurturing Beauty with Care and Expertise

At Oasis Aesthetics, we blend advanced medical treatments with personalized care to help you look and feel your best. Founded on trust and professionalism, our mission is to reveal your natural beauty in a safe, welcoming environment.

Our Vision

To be the leading med spa known for exceptional care, innovative treatments, and transforming skin health and appearance.

Our Mission

To provide personalized, safe, and effective aesthetic treatments that enhance natural beauty and boost confidence in every client.

Our Motto

Your beauty, our passion—delivering radiant skin and renewed confidence with expert care and personalized treatments.

Micro-Needling Treatments in Tustin & Riverside, CA
Micro-Needling Treatments in Tustin & Riverside, CA
Why choose us

Oasis Aesthetics will make you feel confident

Our licensed professionals bring extensive experience ensuring safe, effective treatments tailored to your unique skin and health needs.

We customize every procedure based on your goals and skin condition for optimal, natural-looking results.

We use the latest, FDA-approved techniques and equipment to deliver advanced, minimally invasive aesthetic solutions.

Our spa offers a welcoming, stress-free atmosphere designed to make your experience pleasant and rejuvenating.

Clear pricing with flexible payment options, including financing through trusted partners, to make treatments accessible and affordable.

Our Practitioners

Lesley C. Quartey, FNP‑C, MSN, RN

CO-OWNER
Welcome to Oasis Aesthetics — your destination for elevated medical aesthetics and cellular wellness. As a Certified Nurse Practitioner, I begin every client journey with a personal consultation, creating a customized plan that blends precision, artistry, and science.
 
Through advanced treatments such as neurotoxinsdermal fillerscollagen bio‑stimulationmicroneedling, and IV hydration therapy, I help clients achieve results that feel natural, youthful, and beautifully balanced.
 
You’ve told me what you want: to look refreshed, vibrant, and expressive — never overfilled or stiff. You want movement, softness, and confidence.
 
IV hydration delivers a powerful blend of vitamins and nutrients designed to nourish you from the inside out. These infusions support healthier hair and skin, boost energy, enhance performance, and restore optimal hydration — helping you feel revitalized and refreshed from within.
 
I’m here to deliver exactly that. Every treatment is subtle, intentional, and tailored to your unique features, lifestyle and goals. Oasis Aesthetics is where renewal meets refinement.
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Clifford Liu MD

CO-OWNER

Clifford grew up in Kansas City, KS, and went to undergrad and medical school at the University of Missouri at Kansas City.

He completed his internal medicine residency training at the University of Southern California and has been working as a hospitalist in Southern California for over 20 years.

In addition to being a hospitalist, he has been serving as a medical director for medical aesthetics and IV hydration.

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Reveal Your Radiance with Expert Care Today

Experience personalized, safe treatments designed to enhance your natural beauty and boost confidence. 

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