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⊞ 5 photosLegacy Aesthetics
We provide medical aesthetic services emphasizing natural and customized results.
Women-ownedOnline bookingMembership
B12 shots in Castro Valley, CA
82 med spas offer B12 shots in and around Castro Valley, compared by Google rating and who does the treatment. New to it? Read our B12 shots guide.
82Med spas
5.0Top rating
82 B12 shots Providers Near Castro Valley
Spas in Castro Valley first, then nearby, each ranked by Google rating weighted by number of reviews. No spa paid to be on this page. How we rank
⊞ 5 photos2
⊞ 4 photosLuxe & Posh Aesthetics & Wellness
Discover a sanctuary of rejuvenation and radiance at Luxe & Posh Aesthetics & Wellness. Nestled in the heart of San Ramon, their medical spa experience begins from the moment you step through their doors. Unleash your inner glow with…
Women-ownedOnline bookingLGBTQ+ friendly
B12 shots Near Castro Valley
Hayward · 12San Lorenzo · 1San Leandro · 5Union City · 2San Ramon · 24Dublin · 5Danville · 30Alameda · 133
⊞ 5 photosNourish Aesthetics & Wellness
AerolaseMembership from $119/mo
Discover the ultimate med spa experience at Nourish Aesthetics & Wellness, located at 2345 Valdez St Suite 302, in Uptown Oakland California. We offer top-tier services like Neurotoxin injections, Dermal Fillers, HydraFacials,…
Women-ownedLatinx-ownedBlack-owned
4
⊞ 6 photosSkinSpirit Danville
CoolSculptingDiamondGlow
Looking for the best Botox® in Danville? SkinSpirit is Danville’s premier med spa, known for best-in-class aesthetics and gorgeous, natural-looking results. Our industry-leading medical providers and aestheticians offer personalized…
Online booking
Most Castro Valley spas don't post prices.
Tell us what you're looking for, and up to 3 spas on this page will send you a quote. You choose which ones.
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A
Artful Aesthetics
CoolSculptingFraxel
Artful Aesthetics is a boutique medical spa in Montclair, Oakland offering advanced aesthetic, wellness, and body-contouring treatments for women and men throughout the East Bay, including Piedmont, Lamorinda, Walnut Creek, Alamo, and…
Women-ownedOnline bookingLGBTQ+ friendly
6
⊞ 6 photosGlow Medical Aesthetics
Morpheus8
Beauty and science converge to enhance your natural radiance. Led by Annie Callahan, a highly regarded dermatology Physician Assistant with over a decade of experience, we offer cutting-edge aesthetic treatments designed to make you…
Women-ownedOnline booking
7
⊞ 2 photosMedspañol
Medspañol is a medical and wellness clinic in San Leandro providing personalized hormone optimization, testosterone therapy, menopause care, medical weight loss, IV therapy, vitamin injections, NAD+ therapy, peptides, and aesthetic…
Women-ownedLatinx-ownedVeteran-owned
8
⊞ 5 photosMedLounge San Ramon
Morpheus8
MedLounge San Ramon is a premier, physician-supervised medical spa and wellness center serving San Ramon, Danville, Dublin, Pleasanton, Walnut Creek, Blackhawk, and the Tri-Valley. Our licensed aesthetic and wellness professionals offer…
Online bookingMembershipLGBTQ+ friendly
9
⊞ 5 photosNakedMD Med Spa Walnut Creek
Sciton BBLUltherapy
NakedMD Walnut Creek is the East Bay's destination for affordable, physician-guided neurotoxin and filler treatments. We're on La Casa Via — enter the front double doors, and we're on the right on the 1st floor.
Online bookingMembershipLGBTQ+ friendly
10
⊞ 5 photosTamra Bedford, Cosmetic RN
Laser Genesis
Discover expert med spa treatments at Tamra Bedford, Cosmetic RN in San Ramon, CA. With over 20 years of experience, Tamra offers personalized services like Botox & Dysport, laser hair removal, and microneedling, focusing on enhancing…
Women-ownedOnline bookingLGBTQ+ friendly
More B12 shots Providers Near Castro Valley
Sorted by rating × reviews · distance from central Castro ValleyShowing 11–40 of 82
From Google reviews
What Castro Valley Patients Mention Most
Topics Google pulls from the reviews of the top 10 spas above, counted by mentions.
Lip filler111NakedMD Med Spa Walnut Creek
Injector92NakedMD Med Spa Walnut Creek
Friendly staff32Medspañol
Iv therapy26MedLounge San Ramon
Skin care22Nourish Aesthetics & Wellness
Lip flip18Luxe & Posh Aesthetics & Wellness
Personable staff15Nourish Aesthetics & Wellness
Tailored treatment15MedLounge San Ramon
Painless process14NakedMD Med Spa Walnut Creek
No bruising12Artful Aesthetics
Credentials
Who Does It in Castro Valley
Roles named on the websites of the top 10 spas (5 of them list their team).
Physician (MD or DO)1 of 5
Nurse practitioner (NP)3 of 5
Registered nurse (RN)4 of 5
Devices
Devices Castro Valley Spas Name
Named by 37 of the 60 spas we checked.
| Device | Spas |
|---|---|
| Morpheus8 | 15 |
| Sciton BBL | 14 |
| Emsculpt | 11 |
| CoolSculpting | 9 |
| Ultherapy | 8 |
| Emsculpt NEO | 6 |
| DiamondGlow | 5 |
| Sciton Halo | 5 |
B12 shots Near Castro Valley by the Numbers
82spas list B12 shots within 15 miles
33%of the 250 med spas within 15 miles
4.82average Google rating of those spas (76 rated)
82 of the 250 med spas within about 15 miles of Castro Valley list B12 shots on their Google profile or website.
Those 76 rated providers average 4.82 on Google, and 62 hold a 4.8 or higher.
How We Built This Page
Every number here comes from a spa's Google profile or its own website. Nothing is paid for.
Ranked by reviews, not ads. Google rating weighted by how many people left one.
Prices from each spa's own site. Copied from their websites, checked October 2026.
Devices and credentials only when named. If a spa doesn't say, we leave it blank.
Not phone-verified yet. Prices and staff change, so confirm when you book.
Frequently asked questions
B12 shots in Castro Valley: Common Questions
What is the best-rated B12 shots provider in Castro Valley?
Legacy Aesthetics ranks first on our list, with a 5.0 rating from 174 Google reviews.
We rank by star rating weighted by how many people left one, so a 5.0 from hundreds of patients beats a 5.0 from a handful.
How many med spas offer B12 shots near Castro Valley?
We list 82 within about 15 miles of Castro Valley, based on each spa's Google profile and website.
Are B12 shots providers near Castro Valley well rated?
The 76 rated spas within 15 miles that list B12 shots average 4.82 out of 5 on Google, and 62 hold a 4.8 or higher.
We rank them by rating weighted by how many reviews each has.
What are the med spa rules in California?
Our California page sums up what state law and the licensing boards say about who may do med spa treatments, with a source for each rule.
Which devices do Castro Valley med spas use?
37 of the 60 spas we checked name a device on their website.
The most common are Morpheus8 (15), Sciton BBL (14), Emsculpt (11).
Ask any spa that doesn't say which device it uses.
Keep exploring