There is no single “best” breast implant. The right choice depends on your body type, your aesthetic goals, and how much long-term maintenance you’re willing to commit to. What works beautifully on someone with ample natural breast tissue may look obviously artificial on a thinner frame. That said, understanding the real differences between implant types, shapes, and placement options will help you have a much more productive conversation with your surgeon.
Saline vs. Silicone vs. Cohesive Gel
Three main filling materials dominate the market, and each comes with genuine trade-offs.
Saline implants are filled with sterile salt water after being placed inside the breast. Their biggest advantage is safety simplicity: if one ruptures, it deflates noticeably (so you’ll know right away), and the salt water absorbs harmlessly into your body. They’re available to anyone 18 and older for augmentation. The downside is feel. Saline implants tend to feel firmer and less natural, and in women with thin tissue they can show visible rippling along the edges.
Silicone gel implants are pre-filled with a soft silicone gel that most people agree looks and feels closer to natural breast tissue. They’re approved for augmentation starting at age 22. The catch is that ruptures can be “silent,” meaning the gel stays trapped in surrounding scar tissue and you may not notice any change. That’s why the FDA recommends getting your first ultrasound or MRI screening 5 to 6 years after surgery, then every 2 to 3 years after that, specifically to check for these hidden ruptures. A torn silicone implant can cause breast pain, thickening, or shape changes over time, and leaking gel can occasionally migrate to other parts of the body.
Cohesive gel (“gummy bear”) implants use a thicker, semi-solid form of silicone that holds its shape even if cut in half. Because the filling is denser, these implants maintain their form whether you’re standing, lying down, or bending over. They also carry less risk of gel leakage after a shell rupture compared to traditional silicone. The trade-off is a slightly firmer feel, which some women prefer and others don’t. Gummy bear implants come in both round and teardrop shapes, making them popular for women who want a more defined or sculpted look.
Round vs. Teardrop Shape
Round implants are the most commonly chosen shape. They provide fullness across the entire breast, particularly in the upper pole, and because they’re symmetrical, there’s no concern about rotation. If a round implant shifts slightly, the breast still looks the same.
Teardrop (anatomical) implants are fuller at the bottom and tapered at the top, mimicking the slope of a natural breast. They tend to look more subtle, which appeals to women seeking a less obviously augmented appearance. However, if a teardrop implant rotates inside the pocket, it can create a visibly distorted shape that may require revision surgery. Teardrop implants are almost always made with cohesive gel to maintain their form.
Smooth vs. Textured Surfaces
Implant shells come in smooth or textured finishes, and this choice affects both complication rates and long-term risks.
A meta-analysis covering over 8,400 implants found that smooth implants were roughly three times more likely to develop capsular contracture, the condition where scar tissue tightens painfully around the implant and hardens the breast. That finding historically made textured surfaces appealing. However, textured implants carry a rare but serious risk: breast implant-associated anaplastic large cell lymphoma (BIA-ALCL), a type of cancer of the immune system. Global incidence data shows the rate peaked in 2018, dipped in 2020, and rose again in 2024 to about 0.73 per 100,000 people with implants. The absolute risk remains very low, but it’s almost exclusively linked to textured surfaces, which is why some manufacturers have pulled heavily textured models from the market and many surgeons now default to smooth implants.
Placement: Over or Under the Muscle
Where the implant sits relative to your chest muscle matters as much as the implant itself, especially for how natural the result looks.
Submuscular (under the muscle) placement tucks the implant behind both the breast tissue and the pectoral muscle. This creates a more gradual slope and helps hide implant edges, making it the go-to choice for lean women or anyone with little natural breast tissue. It also reduces visible rippling. The drawback is that the implant can shift or distort when you flex your chest, which some active women find annoying.
Subglandular (over the muscle) placement positions the implant directly behind the breast tissue but in front of the muscle. This allows the implant to move more naturally with the breast and creates a rounder, fuller upper profile. Chest flexing won’t affect the implant’s position. But in thinner patients, the edges of the implant may be visible or palpable through the skin.
Your surgeon’s recommendation here will largely depend on how much natural tissue you have to cover the implant. Women with more breast tissue have the option of going over the muscle without sacrificing a natural look. Women with very little tissue almost always benefit from under-the-muscle placement.
Incision Location and Complication Rates
The surgical approach can influence your risk of capsular contracture. Data from clinical studies found that incisions made through the crease under the breast (inframammary) had a capsular contracture rate of just 0.59%, while incisions made around the areola (periareolar) had a rate of 9.5%. That’s a sixteen-fold difference. Most surgeons prefer the inframammary approach for this reason, though the final decision also depends on your anatomy and the type of implant being used.
Warranties and Long-Term Costs
Breast implants are not lifetime devices. Most women will need at least one replacement surgery over the course of their lives. Ten-year data from FDA post-approval studies of silicone implants showed an overall rupture rate of about 9.5% in augmentation patients, meaning roughly one in ten implants needed attention within a decade.
The three major U.S. manufacturers offer different warranty coverage. Allergan and Mentor both provide 10-year warranties, while Sientra offers 20-year coverage. These warranties typically cover the cost of replacement implants if a rupture occurs, and some include financial assistance toward the surgery itself. It’s worth comparing these programs carefully, because a revision surgery can cost several thousand dollars out of pocket even when the implants themselves are covered.
What Actually Drives Satisfaction
Patient satisfaction research using validated quality-of-life tools reveals something that surprises many women during their research phase: the specific implant brand or filling material matters less to long-term happiness than whether the overall result matches your expectations. Studies using the BREAST-Q scoring system show that the biggest drivers of satisfaction are breast appearance and outcome satisfaction, both of which correlate more strongly with proper sizing, placement, and surgical technique than with any single implant feature.
Women who had implants removed and replaced with tissue-based procedures actually scored significantly higher on satisfaction measures, suggesting that the most natural-feeling result wins out over time regardless of the technology used. This doesn’t mean implants produce poor outcomes. It means that chasing the “best” implant matters less than finding a board-certified plastic surgeon who listens to your goals, evaluates your anatomy honestly, and recommends the combination of type, size, shape, and placement that fits your body.
The FDA’s Required Warnings
Since 2020, the FDA has required all breast implant manufacturers to include a boxed warning (the most serious type of safety label) and a patient decision checklist with every device. These documents must disclose the types and quantities of chemicals and heavy metals found in or released by the implants, along with rupture screening recommendations for silicone devices. Before any surgery, your surgeon is expected to walk you through this checklist so you understand the specific risks, maintenance schedule, and realistic lifespan of whatever implant you choose.