Mentor Implants — A Practical Guide for International Patients
Medically reviewed by Dr. Junghyun Nam, board-certified plastic surgeon, Umnagumo Plastic Surgery
Mentor (a Johnson & Johnson subsidiary) is one of the two implants with the longest continuous FDA-approval history in the United States, and one of the most widely-used implants worldwide. It is a frequent choice in Korean breast surgery, often selected when historical depth and the longest-running clinical evidence outweigh newer-generation properties.
MemoryGel — the cohesivity sweet spot
MemoryGel is the cohesive silicone gel inside Mentor's smooth and Siltex implants. It is engineered to hold its shape under shear (less risk of gel migration in the event of shell compromise) while remaining soft enough to feel natural under the patient's own breast tissue.
MemoryGel BOOST is the higher-cohesivity variant — used when more upper-pole projection and structural shape is desired (often in thinner patients or in revision cases where additional shape control is needed). The choice between standard MemoryGel and BOOST is anatomy-driven, not preference-driven.
Smooth vs. Siltex vs. Xtra Smooth
Mentor offers three surface profiles: Smooth (classic), Siltex (lightly textured), and Xtra Smooth (newer-generation, optimized smooth surface). The choice has practical consequences:
- •Smooth / Xtra Smooth — lower BIA-ALCL signal, can rotate (no concern for round implants, relevant for anatomicals), softer feel.
- •Siltex — moderate texturing, reduced rotation in anatomical implants, slightly different capsular-tissue interaction over time.
CPG anatomical line
Mentor's CPG (Contour Profile Gel) anatomical implants offer teardrop shape variants for patients where round implants would not match the desired silhouette. The trade-off is rotation risk: an anatomical implant that rotates produces an immediately abnormal-looking breast. Siltex texturing reduces but does not eliminate rotation; precise pocket dissection is essential.
In the average primary augmentation, Mentor's round MemoryGel is the more common choice; CPG anatomicals come into play in specific revision and reconstruction cases.
FDA approval depth — why it matters in patient choice
Mentor was one of the original FDA-approved silicone gel implants in 2006 after the 14-year moratorium ended. It has continuous post-approval study data spanning two decades on the same family of products. For patients who weight longest-running evidence heavily in their decision, this depth of dataset is unmatched.
Newer-generation implants (Motiva, Sebbin) have shorter records by definition — they may turn out to be equally good or better in 10 years, but the public data does not yet cover that horizon. Mentor's track record covers it.
When Mentor is the right choice
Mentor is typically the right answer for:
- •Patients who weight historical depth and FDA-approval evidence heavily in their implant decision.
- •Patients who want a well-characterized soft round implant in a moderate-volume primary augmentation.
- •Revision cases where the surgeon and patient want a known long-term complication profile, not a newer-generation unknown.
- •Patients comfortable with the conventional smooth-implant generation rather than the newer nano-textured class.
Frequently Asked Questions
Is Mentor a good breast implant?
Mentor is one of the two implants with the longest continuous FDA-approval history in the United States, with post-approval study data spanning two decades on the same product family. It is a frequent choice when historical depth and the longest-running clinical evidence outweigh newer-generation properties — the right choice depends on the patient, not the brochure.
Which implant is better — Mentor or Motiva?
There is no single best implant. Mentor offers the longest FDA-approval history and the deepest long-term clinical dataset; Motiva offers newer-generation properties such as nanotexturing and a softer gel behaviour, but its public data covers a shorter horizon by definition. The right answer comes out of the consultation and the patient's own anatomy and priorities.
What is MemoryGel BOOST?
MemoryGel BOOST is the higher-cohesivity variant of Mentor's cohesive silicone gel — used when more upper-pole projection and structural shape is desired, often in thinner patients or in revision cases needing additional shape control. The choice between standard MemoryGel and BOOST is anatomy-driven, not preference-driven.
What is the difference between Mentor Smooth, Siltex, and Xtra Smooth?
Smooth and Xtra Smooth surfaces carry a lower BIA-ALCL signal and a softer feel but can rotate (relevant only for anatomical shapes); Siltex is lightly textured, reducing rotation in anatomical implants with a slightly different capsular-tissue interaction over time. Xtra Smooth is the newer-generation optimized smooth surface.
Why does Mentor's FDA-approval history matter?
Mentor was one of the original FDA-approved silicone gel implants in 2006 after the 14-year moratorium ended, and it has continuous post-approval study data spanning two decades on the same family of products. For patients who weight longest-running evidence heavily, that depth of dataset is the deciding factor.
There is no single best implant. Mentor is the right choice when the patient values the longest available evidence base and when their anatomy matches what Mentor does well. Motiva and Sebbin earn their place in different cases. The choice belongs to the consultation, not the brochure.
Related guides
- →Motiva Implants — A Practical Guide for International Patients
- →Incision Methods — Trans-Axillary, Inframammary, Periareolar Compared
- →Breast Implant Size Chart — CC, Cup Size, Profile, and Fit
- →Capsular Contracture After Breast Implants: A Practical Revision Guide
- →Dr. Nam Column — Implant Placement Plane
- →Breast Surgery Checklist (A to Z)