For decades, aesthetic injectors have relied on the “naked eye” and anatomical charts to guide their needles. But as Dr. Roya Zarmehr Zamin, a distinguished aesthetic physician with over 21 years of experience, reveals during a recent video interview, what lies beneath the skin is rarely as predictable as a textbook suggests.

Real-time imaging is something very interesting and very crucial… because it’s a living patient, and everybody is different.”

Moving Beyond “Blind” Injections

Dr. Zamin explains that her journey with ultrasound began when she hit the ceiling of traditional methods. By moving away from “blind” treatments, she has pioneered a method that combines precision, safety, and artistry.

Watch this 4-minute video interview for an introduction to Dr. Zamin’s ultrasound protocol for safer and more precise results. Scroll down for highlights if you prefer a quick read.

During her clinical demonstrations and global lectures, Dr. Roya Zarmehr Zamin identifies several high-stakes complications that can occur during “blind” injections. She advocates for ultrasound as the definitive tool to transform these risks into manageable, visual data.

Preventing the “Disastrous” Outcomes

Dr. Zamin emphasizes that while bruising or swelling are common, ultrasound is specifically used to prevent permanent, life-altering injuries:

• Vascular Occlusion & Blindness: The most feared complication is accidental injection of filler into an artery. Dr. Zamin explains that retrograde flow (back-flow) can push filler into the ophthalmic artery, causing immediate blindness.
  • The Ultrasound Solution: She uses Color Doppler to identify the exact pulse and flow direction of arteries (like the angular or supraorbital arteries) before injecting. If a vessel is detected at her target depth, she adjusts the entry point or switches to a cannula.
• Ischemia & Tissue Necrosis: If a vessel is blocked, the skin it feeds begins to die (ischemia), which can lead to permanent scarring.
  • The Ultrasound Solution: By mapping the depth of the vessels relative to the bone and muscle, she ensures the filler is placed in a “clear” layer, such as the deep fat compartment, avoiding the vascular network entirely.
• Parotid Gland & Nerve Injury: During treatments like jawline fillers or thread lifts, “blind” needles can penetrate the parotid gland or hit facial nerves.
  • The Ultrasound Solution: She identifies these “Challenging Structures”—glands, nerves, and lymph nodes—on the screen. Seeing the hyperechoic capsule of the parotid gland allows her to stay superficial to it, preventing infection.

Register for a Free Webinar with Dr. Zamin: Practical Tips to Simplify Facial Aesthetics

Join us for a practical 1-hour webinar with Dr. Roya Zarmehr Zamin as she breaks down the FACT Approach—a systematic framework to simplify facial ultrasound and maximize patient safety.

March 10, 2026 – 2 PM Pacific | 5 PM Eastern | 10 PM British | 11 PM Central EU 

(March 11, 2026 – 7 AM Korea | 9 AM Australia Eastern | 11 AM New Zealand)

About Dr. Roya Zarmehr Zamin

Dr Roya Zarmehr Zamin is an Aesthetic Physician in Dubai and Iran and the owner of DRZmedaesthetics academy in Canada/Dubai with more than 32-year experience in medicine including clinical research, medical devices and healthcare. She has been an International Aesthetic expert and trainer since 2021, and has trained thousands of Aesthetic Physicians, Dermatologists, Surgeons and Maxillofacial specialists. She has been a global expert for Ultrasound since 2023. She is honoured to be one of the IMCAS faculty since June 2024 and Medical advisor of Clarius since January 2025.

Dr. Zamin is pictured at IMCAS 2026 performing live scanning during a lecture to an audience of her peers.

Why Dr. Zamin Uses Clarius Ultrasound?

During her video interview, Dr. Zamin provides some detail about why she specifically chooses the Clarius L20 HD3 high frequency ultrasound scanner for facial aesthetics. She emphasizes that it’s not just about the hardware, but the entire ecosystem of support. Her key reasons include:

• Superior Image Clarity: She highlights the scanner’s high-quality, high-resolution, and high-frequency capabilities. This is critical for facial aesthetics, as practitioners need to distinguish between very thin layers of tissue, such as the skin, fascia, and muscle.
• Ease of Integration: Dr. Zamin notes that the device is portable and user-friendly, making it easy to incorporate into a busy clinical workflow without the bulk of traditional ultrasound machines.
• AI-Enhanced Guidance: One of the standout features she mentions is the Artificial Intelligence (AI) within the Clarius app. This technology helps “map” the anatomy, making it easier for practitioners to identify structures in real-time.
• Comprehensive Learning Ecosystem: She stresses that Clarius provides more than just a tool; it offers an educational platform. She points to the website’s educational courses, which help doctors and practitioners:
  • Learn the tool quickly.
  • Interpret complex ultrasound images accurately.
  • Bridge the gap between their existing aesthetic knowledge and new anatomical insights gained through imaging.

Learn more about Clarius AI-powered ultrasound on the aesthetics specialty page. Or contact us for a personalized virtual demonstration.