Sientra's gel names and profile codes can look like one long string of technical information. It helps to split them into two simple questions: what is the device design, and what are its dimensions?
The aim is to understand the few options your surgeon recommends, rather than memorize the whole catalog.
What HSC and HSC+ identify
Sientra uses HSC for high-strength cohesive silicone gel and HSC+ for high-strength cohesive plus gel. In its consumer materials, the manufacturer describes HSC+ as more cohesive than HSC, with greater shape retention. Sientra gel description.
The names belong to this manufacturer's system. They shouldn't be assumed to match another brand's gel category simply because both use the word cohesive.
The patient brochure identifies HSC and HSC+ across round styles and HSC+ in shaped styles. Sientra patient labeling.
Ask your surgeon to explain the actual sample and why its behavior is relevant to your plan. A plus sign isn't, by itself, a reason to choose a device.
Gel and feel
Gel properties contribute to how a sample compresses, moves, and retains form. The shell and fill design also influence what you notice.
After surgery, skin, natural tissue, placement, and the capsule of scar tissue that forms around the implant become part of the feel.
If feel is a priority, ask to compare samples with similar dimensions. Changing volume and profile at the same time can make it harder to identify what you're responding to.
Then ask how your tissue coverage may change the difference.
The smooth round profile categories
Sientra patient information lists Low, Low Plus, Moderate, Moderate Plus, High, and Extra High categories.
These are categories within a product system. They don't define cup sizes or a universal scale of subtle-to-dramatic results.
| Feature | What it describes |
|---|---|
| Gel designation | A material and device-design characteristic |
| Profile | Relationship between base dimensions and forward projection |
| Volume | The listed amount in CC |
| Width | The device footprint |
| Projection | The device's forward dimension |
| Surface | The outside of the shell |
The exact dimensions should guide the comparison.
Similar volume can have different dimensions
If two devices have similar volume but different profiles, one may be broader and less projecting while the other is narrower and more projecting.
That changes the device's distribution of volume. It doesn't automatically choose a better fit for your breast.
Ask your surgeon whether the comparison is being made at a similar volume or a similar width. If both are changing, write down both changes.
The profile explainer shows why those comparisons answer different questions.
Why the full style code matters
Sientra has used several model-code families and profile abbreviations.
An abbreviation such as MP should be read within the specific style family. Don't assume that matching letters mean two devices have identical geometry.
The instructions for use identify different families with their associated ranges. Sientra device labeling.
Copy the complete model number from the source document or the practice's recommendation. Include the gel and surface so the code doesn't lose its context.
Keep surface separate from gel
A gel name doesn't tell you whether the shell is smooth or textured.
Sientra's documentation includes multiple designs, including historical textured and shaped devices. A broad labeling table shouldn't be treated as a list of what a practice currently offers.
For a new plan, ask for the precise surface and the reason for selecting it. The relevant surface-specific information should be part of the consultation.
How to compare two proposed Sientra options
Begin with the dimensions.
Ask your surgeon to show how each device's width relates to your breast base and how its projection relates to the appearance you're discussing.
Then ask about the gel. What difference does the surgeon expect in feel or shape retention? How much of that difference might you notice through your tissue?
Finally, put the options back into the complete plan: placement, any lift, and the differences between the two breasts.
A better way to describe your preference
You don't need to ask for HSC+ to communicate that you want fullness, or High to communicate that you want a noticeable change.
Try saying, “I like more forward projection,” “I prefer a gradual upper slope,” or, “I want to compare how these feel.”
Those statements help the surgeon identify the relevant features. The product name should follow the reasoning rather than replace it.
What to ask about evidence
If a design property is described as an advantage, ask what supports the claim and whether it applies to the type of operation you are considering.
Device testing, patient follow-up, and a surgeon's experience each contribute different information. Keep the model and patient population attached to any statistic.
You don't need a ranking of every implant on the market. You need an explanation of why this design belongs on your shortlist.
What you should know before deciding
Leave with the complete product details and a clear account of why the combination suits your anatomy and preferences.
Also understand the follow-up plan, relevant risks, and warranty requirements for the actual device.
Once gel and profile are separated, the Sientra terminology becomes much easier to follow. You can focus on the choices that matter to you instead of trying to decode the entire range at once.
Frequently asked questions
What do HSC and HSC+ identify?
Sientra uses HSC for high-strength cohesive silicone gel and HSC+ for high-strength cohesive plus gel. In its consumer materials, the manufacturer describes HSC+ as more cohesive than HSC, with greater shape retention. Sientra gel description.
The names belong to this manufacturer's system. They shouldn't be assumed to match another brand's gel category simply because both use the word cohesive.
Does the gel name tell me how the result will feel?
Gel properties contribute to how a sample compresses, moves, and retains form. The shell and fill design also influence what you notice.
After surgery, skin, natural tissue, placement, and the capsule of scar tissue that forms around the implant become part of the feel.
General educational information, not an individual surgical assessment. Discuss your options, risks, and care with a qualified clinician.