8 verified providers · CA
The 8 best med spas in Mill Valley, CA (2026)
Ratings, reviews, and pricing for every verified provider — ranked by rating × ln(reviews + 1), never by who paid.
By The No BS Med Spa Reviews Editorial Team · Updated 2026-07-10
Key facts
- Mill Valley, CA has 8 medical spas listed in No BS Med Spa Reviews.
- Average rating: 4.90 / 5 across 0 patient reviews.
- Top rated: B12 Mill Valley (★ 5, 0 reviews)
- Rating distribution: 1 spas at 5★, 3 at 4.0–4.99★, 0 at 3.0–3.99★.
- Popular treatments: Botox, dermal fillers, HydraFacial, laser hair removal, body contouring, weight loss (GLP-1).
Mill Valley, CA has 8 medical spas offering Botox, dermal fillers, laser treatments, body contouring, weight loss programs, and more. The average med spa in Mill Valley holds a 4.90/5 rating across 0 aggregated patient reviews. Rankings on this page use a transparent priority score (rating × ln(review_count + 1)) — no paid placement in organic results.
Ranked by priority score
The best 8 med spas in Mill Valley
Ranked by priority score (rating × log review count). All listings are unpaid.
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Full directory
All 8 medical spas in Mill Valley
Every verified provider we track in this metro, recommended and featured listings first.
B12 Mill Valley
Mill Valley, CA
Belle Marin Aesthetic Medicine
Mill Valley, CA
Inner Image
Mill Valley, CA
Aesth Derm And Skin Cancer
Mill Valley, CA
Aesthetic Anti Aging Institute
Mill Valley, CA
David Laub Md
Mill Valley, CA
Skin Suite Marin
Mill Valley, CA
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Zand Dermatology
Mill Valley, CA
By treatment
Popular treatments in Mill Valley
Local pricing and providers for each treatment.
Local insights
Mill Valley Med Spa Guide
There are 8 medical spas in Mill Valley, CA, averaging 4.90/5 across 0 patient reviews. Of those, 4 hold ratings of 4.0 stars or higher — a sign that the Mill Valley market skews toward well-established providers with consistent patient outcomes.
Neighborhoods like Downtown Mill Valley concentrate higher-end injectable and laser providers, while outlying areas of Mill Valley tend to offer broader wellness menus (IV therapy, GLP-1 programs, body contouring) at more accessible price points. B12 Mill Valley currently leads the city by priority score with a 5 rating across 0 reviews.
Compared with national benchmarks, Mill Valley pricing for popular treatments tracks the local cost-of-living index, meaning Botox, fillers, and laser hair removal can swing 20–50% above or below the national midpoint depending on the specific neighborhood and provider tier.
Pricing
How much does Botox cost in Mill Valley?
Botox in Mill Valley typically costs $10–$25 per unit. A full forehead treatment uses 20–50 units, so the total cost is usually $200–$1250 per session, depending on provider experience, injector credentials, and the specific neighborhood within Mill Valley, CA. Most med spas offer per-unit pricing transparently; watch out for "per area" quotes that can obscure your final cost.
Top rated
What is the top-rated med spa in Mill Valley?
B12 Mill Valley is the top-rated medical spa in Mill Valley, CA with a 5/5 rating across 0 verified patient reviews. Rankings on No BS Med Spa Reviews use a transparent priority score (rating × ln(review_count + 1)), so a clinic must combine strong ratings with meaningful review volume to reach the top. View B12 Mill Valley →
Market size
How many medical spas are in Mill Valley?
Mill Valley, CA has 8 medical spas listed in No BS Med Spa Reviews. Together they hold 0 aggregated patient reviews with an average rating of 4.90 / 5.
- 1 spas rated 5.0★
- 3 spas rated 4.0–4.99★
- 0 spas rated 3.0–3.99★
- 0 spas rated below 3.0★
- 4 spas with no rating yet
Price index
Treatment Pricing in Mill Valley
| Treatment | Typical Cost | Unit | National Avg. |
|---|---|---|---|
| Botox in Mill Valley | $10–$25 | per unit | $10–$25 |
| Dermal Fillers in Mill Valley | $600–$1,500 | per syringe | $600–$1,500 |
| Laser Hair Removal in Mill Valley | $100–$600 | per session | $100–$600 |
| HydraFacial in Mill Valley | $150–$350 | per treatment | $150–$350 |
| Microneedling in Mill Valley | $250–$700 | per session | $250–$700 |
| Chemical Peels in Mill Valley | $150–$800 | per session | $150–$800 |
| Body Contouring in Mill Valley | $600–$4,000 | per treatment area | $600–$4,000 |
| CoolSculpting in Mill Valley | $750–$1,500 | per applicator | $750–$1,500 |
Prices are typical local ranges based on cost-of-living adjustment vs. national averages. Final pricing varies by provider experience, product brand, and quantity.
Geography
Where to Find Med Spas in Mill Valley
Med spa density in Mill Valley, CAis highest in these neighborhoods, which cluster the city's injectable, laser, and skincare providers.
- Downtown Mill Valley
- North Mill Valley
- South Mill Valley
How to choose
Tips for Choosing a Med Spa in Mill Valley
- Verify medical director credentials. A licensed physician (MD or DO) should oversee injectables and laser care; ask who the medical director is and confirm their license is active in CA.
- Check before/after photos. Look for unretouched, consistent-lighting photos of patients with skin and anatomy similar to yours — not stock or marketing imagery.
- Ask about product brands. Reputable Mill Valley med spas use FDA-approved injectables (Botox, Dysport, Juvéderm, Restylane, RHA). Ask to see the product box at the time of treatment.
- Confirm pricing in writing. Get per-unit (not per-area) pricing for Botox, per-syringe pricing for fillers, and a written estimate for any package deal before paying.
- Read recent reviews. Prioritize reviews from the last 12 months over older ones, and pay attention to how the clinic responds to negative feedback.
Free matching
Get Free Quotes from Multiple Providers in Mill Valley
Tell us what treatment you're interested in and we'll match you with 3-5 verified Mill Valley med spas. Free, no obligation.
Get Free Quotes →Our methodology
How we picked these spas in Mill Valley
We evaluated 8 data points across 8 medical spas in Mill Valley. No spa paid to appear in our rankings.
Read our research methodology →FAQ
Frequently asked questions
How many medical spas are in Mill Valley, CA?
Mill Valley, CA has 8 medical spas listed in No BS Med Spa Reviews, with 0 aggregated patient reviews and an average rating of 4.90 out of 5 stars.
What is the best-rated med spa in Mill Valley?
B12 Mill Valley is the highest-ranked medical spa in Mill Valley by our priority score, with 5/5 rating and 0 reviews.
What treatments are offered at med spas in Mill Valley?
Most med spas in Mill Valley offer Botox, dermal fillers, laser hair removal, HydraFacial, microneedling, chemical peels, and body contouring. Some specialize in weight loss / GLP-1 programs (semaglutide, tirzepatide) and IV therapy.
How much does Botox cost in Mill Valley, CA?
Botox in Mill Valley typically costs $10–$25 per unit, depending on provider experience and metro area. A full forehead treatment uses 20–50 units, so total cost is usually $200–$1,250 per session.
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Methodology
Provider data is sourced from public business records and continuously verified. Rankings use the priority score formula: rating × ln(review_count + 1). Industry context is informed by the AMSA State of the Industry 2025 and ASPS annual procedural statistics. No paid placement in organic results.
See methodology · how we rank · how we verify