Lip fillers. Under-eye fillers. Cheek fillers. They’re everywhere right now — and if you’ve been thinking about trying them, you’re probably wondering one thing:
are they actually safe?
It’s one of the most common questions patients bring into a consultation. And it’s the right one to ask.
FDA-approved dermal fillers have a well-established safety record. Risks range from common, temporary swelling and bruising to rare but serious complications like vascular occlusion. But who performs your treatment matters just as much as the treatment itself.
So here’s what you need to know before booking your first appointment.
Understanding FDA-Approved Fillers (2026 Standards)
If you’re considering fillers, it helps to know what’s actually being used and how each option behaves in the body. Not all fillers function the same way, even though they’re often grouped together.
Hyaluronic Acid (HA) Fillers
Hyaluronic acid fillers are widely considered the gold standard. HA is a substance your body naturally produces, which makes it highly biocompatible and typically well tolerated. These fillers add volume and structure while still allowing for soft, natural movement.
One of the reasons many patients feel comfortable starting here is that HA fillers are reversible. If necessary, they can be dissolved with an enzyme called hyaluronidase. That flexibility offers an added layer of reassurance.
Bio-Stimulatory Fillers
Bio-stimulatory fillers work differently. Radiesse (calcium hydroxylapatite) and Sculptra (poly-L-lactic acid) stimulate your body’s own collagen production over time. Results develop gradually and can last longer.
They are FDA-approved and safe when properly administered, but unlike HA fillers, they are generally not reversible. That’s why thoughtful planning and experienced technique matter even more with this procedure.
Common vs. Rare Side Effects
Most filler treatments come with mild, temporary effects that resolve quickly.
Common (typically improve within 3-7 days):
- Bruising
- Swelling
- Redness
- Tenderness
More serious complications are uncommon but equally important to understand.
Rare + Serious:
- Infection
- Granuloma (firm lumps/ nodules beneath the skin)
- Vascular Occlusion (when filler enters and blocks a blood vessel)
These complications are rare. But knowing they exist is part of making an informed decision. The key is being in experienced hands, where subtle changes are recognized early and managed with care.
Identifying Vascular Occlusion: Red Flags
Vascular occlusion (or ischemia) is rare, but it’s the most important complication patients should be aware of. It occurs when filler blocks a blood vessel and requires immediate attention.
Red flags include:
- Blanching or whitening of the skin
- Severe or unusual pain
- Skin mottling or a lace-like discoloration
If you experience any of these symptoms, contact your provider right away. Early intervention is vital for protecting your skin and preserving your results.
Safety Checklist: How to Vet Your Injector
Choosing the right person for the job is the most important safety decision you’ll make. Beautiful results begin with the proper training and medical judgment. And there’s no two ways about it.
Ask About Complication Protocols
It’s reasonable to ask how complications are handled. Does the practice keep dissolving agents, like hyaluronidase, on hand? Is there a clear plan in place if something unexpected occurs? A confident provider will welcome all of your questions.
Avoid Casual Settings
Injectables belong in a medical environment. Not at “filler parties,” not in someone’s basement. A legitimate clinic prioritizes sterility, safety, and full accountability.
Frequently Asked Questions
Can fillers migrate over time?
They can, though it’s uncommon. Migration is usually linked to poor technique or overfilling. Choosing a plastic surgeon like Dr. Kashan helps minimize that risk through precise placement and a conservative approach.
Are fillers safe for pregnant or breastfeeding women?
Injectable fillers are generally not recommended during pregnancy or while breastfeeding due to limited safety data.
How do I know if the filler being used is real?
Ask to see the product packaging. FDA-approved fillers come in sealed, labeled syringes that can be verified in-office.
Ready When You Are
Most patients don’t wake up one morning and book filler on impulse. They think about it. They research. They wonder if it’s the right time, or the right place. That’s normal.
Every treatment in Dr. Kashan’s practice begins with a conversation. We take the time to understand what you’re noticing, what feels different, and what kind of change would actually feel meaningful to you.
If fillers have been on your mind, consider this your invitation to explore the options. When you’re ready, reach out to the Kashan team and we’ll walk you through everything at your pace.
