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Dermal Fillers (Injectable HA)

Look Like Yourself, Only Better. Natural results with every treatment, guided by doctor expertise and ultrasound precision.

Dermal Fillers (Injectable HA)

Overview

Most people who come to us for dermal fillers are looking to look like themselves, only more rested and balanced. In a way where people notice they look great, but the results feel like them. They want their features enhanced, not transformed. And they want to feel confident that the person making those decisions truly understands both the science and the artistry required to get there.


That is exactly what we design for. Great filler results require more than technical knowledge. They require an artistic eye for proportion, balance, and the subtle relationship between facial features that makes a result look harmonious. At PI Aesthetics our aesthetic-trained doctors bring both to every consultation and every treatment.


We use only hyaluronic acid fillers, which are naturally compatible with the body and fully reversible if needed, so you can move forward with confidence. And because we use ultrasound guidance for every filler treatment, we can visualize your individual anatomy before and during treatment. Facial structures, blood vessels, and muscle patterns vary significantly from person to person, and that visibility allows us to treat with a level of precision and safety that simply is not possible without it.

Starting from

$850

Book Appointment

Comprehensive consultation with an aesthetic-trained doctor

Personalized treatment plan tailored to your anatomy and goals

​Treatment on the same visit if appropriate

Follow-up appointment to assess results

Portrait of a smiling medical aesthetic provider at PI Aesthetics Medical Spa in Mill Creek, WA.

"Dermal fillers are often misunderstood as a straightforward procedure. The reality is that achieving truly natural results requires both deep anatomical knowledge and artistic judgment. I think of it like painting. You can have the finest materials available and still produce a poor result, or limited materials and create something beautiful. The difference is always the hand behind it. That is why we invest so heavily in training, precision, and ultrasound guidance. The materials matter, but the judgment matters more."

- Federico Fenton, MD

Provider & Co-Founder

"Dermal fillers are my passion. What I love most is the moment of the reveal, when a patient sees their results for the first time. Some patients get emotional, and honestly those moments stay with me. It is not just about how they look. It is about watching someone reconnect with a version of themselves they had been missing. Sharing that moment with my patients brings me so much joy." 

- Thoa Fenton, DNP

Medical Director, Provider & Co-Founder

Portrait of a smiling medical aesthetic provider at PI Aesthetics Medical Spa in Mill Creek, WA.

What our doctors have to say about dermal fillers

Patient Testimonials

Our Patients, In Their Own Words

Before and after medical skin care results at PI Aesthetics Medical Spa in Mill Creek, WA.

Michelle Hulbert

average rating is 5 out of 5

via Google

I was nervous to start my journey with filler but Dr. Thoa made it so easy! She does a thorough consult, listens to what you hope to achieve and most importantly (in my opinion), keeps the results looking so natural!!! She refreshed my face and helped me address the concerns of wrinkles on my forehead. She uses an ultrasound before placing filler- ensuring it is placed safely. I've also always had the thinnest lips that made me self conscious- and she helped give me the most natural looking, beautiful lips! I can't recommend PI Asthetics enough!!

Before and after medical skin care results at PI Aesthetics Medical Spa in Mill Creek, WA.

Staci Holschen

average rating is 5 out of 5

via Google

Most welcoming and friendliest place to get injections. My lips look amazing and when I tell people it’s filler they don’t believe me. Dr. Thoa is so gentle and really does an amazing job of making it look natural.

FAQs

Frequently asked questions

What are dermal fillers?

Dermal fillers are injectable gels used to help restore lost volume, smooth deep lines, and balance facial features in a natural-looking way. At PI Aesthetics, we exclusively use hyaluronic acid (HA) fillers, a substance that occurs naturally in your body.

Will my results look natural?

For many first-time patients, the biggest hesitation is seeing bad results in others and worrying that the same could happen to them. At PI Aesthetics, natural-looking results are not just a goal; they are our standard. The before-and-after images on this page show you exactly what that means in practice.

How long do dermal fillers last?

Most HA fillers last between 9 and 18 months, though this varies depending on the area treated, the product used, and how your body metabolizes it. Your doctor will give you realistic expectations during your consultation based on your specific treatment plan.

How many syringes will I need?

This depends entirely on your unique facial anatomy, your goals, and the areas being treated. There is no one-size-fits-all answer, which is exactly why we conduct a thorough facial assessment before making any recommendations. Your doctor will walk you through a personalized plan at your consultation.

What is the cost of dermal fillers?

Cost depends not only on the amount of product use, but also on the area being treated and the level of skill required for each treatment. Results like those seen in our before-and-after images often require 2 to 5 syringes, with a total cost ranging from $1,500 to $3,500 or more. One exception is the lips, which costs around $850. Your doctor will give you a more accurate picture during your consultation once your goals and treatment plan are established.

What are the risks of dermal fillers, and how do you manage them?

Like all medical treatments, dermal fillers carry known risks. We address these thoroughly during your consultation so you can make a fully informed decision. Our team is specifically trained to manage possible complications, and we approach every treatment with a high degree of clinical care and thoughtfulness.

Why do you use ultrasound for filler treatments?

Ultrasound provides real-time visibility beneath the skin, increasing both safety and precision in ways that are simply not possible without it. It allows us to assess your unique anatomy before treatment, evaluate any previously placed filler, and manage complications effectively if they arise. In our view, ultrasound guidance represents the current standard of excellence for filler treatments and is a core part of how we practice.

Can fillers be reversed?

Yes. Because we exclusively use hyaluronic acid fillers, they can be dissolved with an enzyme called hyaluronidase if needed. This is one of the reasons we choose HA fillers. In the rare case that a result needs adjustment or a complication arises, having that option matters.

What should I avoid before and after my appointment?

In the days before your treatment, we recommend avoiding alcohol and, if medically able, NSAIDs such as ibuprofen and other medications that can increase bleeding. Your doctor will review your specific medications during your consultation and advise accordingly.

What should I expect after treatment, and is there any downtime?

Most patients experience mild swelling and tenderness in the treated areas, which typically resolves within a few days. Significant pain is not expected. With few exceptions, downtime is not expected.

When will I see my results?

Results are visible immediately after treatment. However, final outcomes typically take 4-8 weeks to appreciate, as it takes time for the hyaluronic acid to fully integrate.

Aesthetic medical consultation between a doctor and a patient at PI Aesthetics Medical Spa in Mill Creek, WA.

Your Consultation Is Where It All Starts

Before any treatment is discussed, your doctor sits down with you. Not a coordinator, not a patient intake manager. Your doctor.

Your doctor will begin by taking the time to understand what brought you in and what you are hoping to achieve. From there they will perform a comprehensive facial assessment, evaluating your unique anatomy, facial profile, skin condition, and movement patterns. They will share their findings, walk you through what they are seeing, and make sure you leave with a clear understanding of your options. This is not a formality. It is the foundation of everything that follows, because a plan that is right for someone else may not be right for you. We do not rush this part.

From there we walk you through your options honestly, discuss what we believe is appropriate, and build a personalized plan around your goals. We only recommend what we genuinely believe in, and we hold ourselves to the same standard we would expect for our own family.

You will leave with clarity, a plan you feel confident in, and every question answered. Whether you proceed with a treatment that day or not, you will leave informed.

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BEFORE & AFTER

Every Result Has a Story

Before and after dermal fillers treatment results showing restored volume and balanced features at PI Aesthetics Medical Spa in Mill Creek, WA.

Treatment type: Mid-Face dermal filler

Patient Concerns: This PI Aesthetics patient did not like her under eyes appearing "tired and hollow" and the "deep lines" in her inner cheeks, leading to an appearance of tiredness and cheek volume loss.

Treatment Plan: We created a personalized treatment to restore mid-face volume loss, leading to a rejuvenated appearance while still maintaining her unique personal facial features. Results like this require several syringes of filler (between 3 and 5).

Results: Our patient loves her results. She feels and looks more rested and rejuvenated.

What Makes Us Different

Natural Results Are Our Standard 

Every treatment is designed to preserve your individuality, while softening expression lines and enhancing your features in a way that looks completely natural.

Doctor-Led from the Start

Every treatment plan and consultation is done by an aesthetic-trained doctor. Because the best results require both clinical skill and artistic judgment.

Ultrasound Guided Precision

We use ultrasound technology to see beneath the skin during treatment, improving safety, accuracy, and outcomes. Ultrasound guidance is technically demanding skill to learn. Our doctors have invested in mastering it because we believe it represents the highest standard of care available for filler treatments.

New to This?

If this is your first time, you are in the right place. We take time to educate and explain, not just treat.

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