Spas & med spas in Castro Valley, CA
29 spas & med spas listed in Castro Valley, California. 29 with a phone number and 25 with a website.
Castro Valley accounts for 0% of the spas & med spas listed in California and ranks #167 among California cities for spas & med spas.
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Quick answer
Castro Valley, CA has 29 spas & med spas listed on USA Business Search. 29 list a phone number and 25 list a website. The most listings are in ZIP codes 94546, 94552.
Updated October 2026Featured · Elevation Health
Thinking about GLP-1 weight loss in Castro Valley?
Elevation Health is a telehealth GLP-1 program founded by registered dietitians. A clinician reviews your intake and health history, and dietitian coaching is built in.
- RD-led coaching
- Clinician review
- Telehealth, from home
Prescription medication is provided only if a licensed provider finds it appropriate.
Health Day Spa
Holiday Spa
Kat Wax
Onyx Day Spa
Absolute Bliss Skin Spa Studio
Absolute Bliss Massage Therapy
Attuned Skin Body Soul
Cadence Hair Studio
Daily Glam Gallery
Deka Lash Ca-castro Valley
Dunbar & Lloyd Skincare
Euro Diva
lety's Salon
Lilly Beauty Castro Valley
Lymph-MD
Michelle's Electrology
More Than Strangers
Natalia's Advanced Skin Care
Onyx Spa
Sponsored
Secretly Sunless
Susan & Salena's Skin Care
Sydney's Esthetics
The Floatery
The Wax Genie
Valley Neuromuscular & Skin Therapy Center
WeiWei Beautiful
Young Image Spa
Zoe Ross Esthetics
How to choose a spa in Castro Valley
- Ask who performs medical treatments like injectables or lasers, and their license.
- Ask for pricing in writing, including packages and memberships.
- Ask about aftercare and what happens if you have a reaction.
Check the license: Board of Barbering and Cosmetology (estheticians).
Medical weight loss and GLP-1 care in Castro Valley: what to ask
- GLP-1 medicines such as semaglutide and tirzepatide are prescription-only. A licensed prescriber should review your health history and any labs.
- Ask whether the medication is an FDA-approved brand or a compounded version, and which pharmacy fills it.
- Ask for the full monthly cost in writing: visits, medication, shipping and follow-up.
- Ask how side effects are monitored and how often you will check in with a clinician or dietitian.
See the medical weight loss guide for providers by state.
Common questions
How many spas & med spas are listed in Castro Valley, California?
USA Business Search shows 29 spas & med spas in Castro Valley. 29 list a phone number and 25 list a website.
Which ZIP codes do these listings cover?
They include ZIP codes 94546, 94552.
How do I choose a spa in Castro Valley?
Ask who performs medical treatments like injectables or lasers, and their license. Ask for pricing in writing, including packages and memberships. Check the license with the Board of Barbering and Cosmetology (estheticians).
How do spas & med spas in Castro Valley compare with the rest of California?
Castro Valley has 0% of the 19,348 spas & med spas listed in California, which ranks #167 among California cities for this category.
How do I add or fix a listing?
Listings are free. Use Add your business, or the Claim or fix link on any listing.
Do I need a prescription for GLP-1 weight loss in Castro Valley?
Yes. Semaglutide and tirzepatide are prescription medications, and a licensed provider decides whether they are appropriate for you. Telehealth programs such as Elevation Health (featured) review your intake from home.
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