Home | Face Rejuvenation | Injectables
Injectable treatments offer a non-surgical way to soften expression lines, restore lost volume, and enhance facial balance — all with minimal downtime. When performed with anatomical precision, wrinkle relaxers and dermal fillers create refined, natural-looking improvement without altering expression.
At Aesthetic Surgery Center: Michael R. Macdonald, M.D., injectable treatments in San Francisco are performed with a conservative, proportion-based approach that prioritizes balance and long-term facial harmony.
Injectables are non-surgical treatments designed to address early and moderate signs of aging.
They include:
These treatments can be performed individually or combined to achieve balanced, subtle rejuvenation.
Wrinkle relaxers are injectable treatments that temporarily soften facial muscles responsible for expression lines. They are commonly used to improve:
Treatment sessions are brief and typically require little to no downtime. Results gradually appear within several days and typically last approximately 3–4 months.
Dermal fillers restore volume and refine facial contours where natural fullness has diminished over time.
Common treatment areas include:
Strategic filler placement enhances facial structure while maintaining a natural appearance.

Injectables require detailed knowledge of facial anatomy. Overcorrection or improper placement can disrupt natural expression.
As a board-certified facial plastic surgeon in San Francisco, Dr. Macdonald approaches injectables with:
• Conservative dosing
• Structural awareness
• Balanced contour planning
• Expression preservation
• Long-term aesthetic strategy
Patients throughout the Bay Area seek injectable treatments here because precision and restraint matter.
For moderate to advanced skin laxity or structural descent, surgical procedures such as facelift or eyelid surgery may provide more comprehensive improvement.
A consultation helps determine the most appropriate path.

Injectable treatments are performed in-office and typically involve:
Most patients resume normal activities the same day.
Wrinkle relaxers typically last 3–4 months.
Dermal fillers may last between 6–18 months depending on product type and placement.
Maintenance plans are customized to each patient’s goals.
Subtlety is key. The goal of injectable treatment is refinement — not exaggerated change. A conservative, proportion-based approach ensures the face remains natural and expressive.
Selecting an experienced San Francisco injectable provider significantly reduces risk and enhances aesthetic outcome.
Below are answers to common questions about wrinkle relaxers and dermal fillers.
Wrinkle relaxers are injectable treatments that temporarily reduce muscle activity responsible for expression lines such as forehead lines and frown lines.
Dermal fillers restore facial volume, improve deep folds, enhance lips, and refine jawline or chin contour.
Wrinkle relaxers typically last about 3–4 months, while dermal fillers can last from 6–18 months depending on placement and product type.
Most patients describe injectable treatments as mildly uncomfortable rather than painful. Discomfort is brief and manageable.
When administered conservatively, injectables enhance facial features while preserving natural expression. The goal is subtle refinement.
Injectables can delay or complement surgical procedures but cannot correct significant skin laxity or deep structural descent.
Whether softening early lines or restoring facial volume, injectable treatments offer precise enhancement with minimal downtime. A consultation ensures your treatment plan aligns with your long-term aesthetic goals.

Let us help you achieve your aesthetic goals with confidence and ease.
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