Saline vs Silicone — The Full Comparison

Feel and Appearance

Silicone gel consistently wins on feel — cohesive silicone gel closely mimics the give, weight, and texture of natural breast tissue. Most women and their partners cannot distinguish silicone implants from natural tissue by touch, particularly with adequate natural breast tissue coverage. Saline feels firmer and can have a slight sloshing quality in some cases. Rippling — visible or palpable undulation of the implant surface — is more common with saline, particularly in women with less natural tissue coverage. For women with adequate natural tissue (typically C cup or above pre-augmentation), the difference in feel is less significant.

Safety Profiles

Both types are FDA-approved and have well-established safety profiles from decades of clinical use. The key difference in failure mode: saline rupture is immediately visible (the implant deflates within hours to days) and the saline is harmlessly absorbed by the body. Revision surgery to replace the implant is needed, but there are no health risks from the leaked fill. Silicone rupture is typically "silent" — the cohesive gel stays contained and the rupture may be undetectable by touch for years. MRI monitoring every 2–3 years is recommended to detect silent rupture. Neither type has been found to cause systemic disease.

Cost

Silicone implants cost more than saline — typically $1,000–$1,500 more per pair for the implants themselves. This difference is typically included in quoted procedure costs. Most patients who have both options available choose silicone despite the price difference for the superior feel and appearance. Cost differences vary by country and surgeon.

Age Requirements and Practical Considerations

FDA guidelines approve saline for augmentation at 18+, silicone at 22+. This is a guideline rather than an absolute prohibition — surgeons can use clinical judgment. For patients under 22 who want augmentation, saline is typically the recommended starting point. For revision or reconstruction, age requirements may differ. Outside the US, guidelines vary by country.