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Relaxation & Spa
Spa Day Packages

TONIC a sanctum for your skincare

Pure skincare rituals in Mill Valley's quietest sanctuary.

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How It Works

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what our clients say

User
Donna Pike
27 days ago on Google

My husband and I were downtown yesterday to provision more food for our boat trip, but decided we had to have a little treat before heading out, and the staff was super friendly and quick.

User
Amit Kumar
2 months ago

Great experience overall. The service was smooth, the ambience was nice, and the food quality was better than expected. Will visit again with family.

Buy Now, Book Later

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Instant Delivery

Overview

TONIC isn't a spa that whispers promises. It's a place where every bottle, every touch, every ingredient tells the truth. Nestled in Mill Valley, this is skincare stripped down to what actually works—no parabens, no shortcuts, no compromise. You'll walk into calm the moment you arrive.

Their treatments are built on clean formulations and time-honored techniques that let your skin breathe and transform. Whether you're seeking a deep reset or preventative care, each experience is tailored to your skin's real needs. The kind of place where you leave looking like yourself, just… better.

Give them (or yourself) the gift of skincare that doesn't come with guilt. Pure results, pure ingredients, pure sanctuary.

  • Facials, body treatments, and customized skincare consultations available
  • All products are paraben-free, cruelty-free, and eco-friendly
  • Sessions typically run 50 minutes to 90 minutes depending on treatment
  • Wear comfortable clothing; you'll be draped and relaxed throughout
  • Arrive 10-15 minutes early for check-in and consultation
  • Bring any relevant skin history or concerns to discuss with your esthetician
  • Gratuity is always appreciated and can be added at booking

Arrival

You'll be greeted in a serene, intentional space. Check in, and take a breath—the quiet here is deliberate. Your esthetician will meet with you to understand your skin, any sensitivities, and what you're hoping to feel and see.

The Treatment

Lie back. Your skin will be cleansed, analyzed, and treated with pure-ingredient products that actually absorb and work. Massage, extractions, masks, serums—every step is designed to nourish without overwhelming. You'll feel the difference in how your skin responds.

Aftercare

Before you leave, your esthetician will apply a finishing treatment and walk you through a simple skincare routine to extend the benefits at home. You'll get a clear sense of what your skin needs next—and it won't involve unnecessary products.

Cancellations require 24 hours' notice to avoid a fee. Pregnant clients should notify their esthetician beforehand, as certain treatments may be modified. If you have active skin conditions, injuries, or medical concerns, please mention them during consultation—your esthetician can recommend adjustments. Gratuity (18-22%) is customary and deeply appreciated.

This experience does not have a physical location and can be attended online.

This experience will be held at a location of your choice within the service area.

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