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Sèra Thèa
Sèra Thèa

Sèra Thèa

Spa in O'Fallon, MO

Rated 4.9 out of 5 (112 on Google Maps) (opens in a new tab) Closed now

Sèra Thèa was founded by a hair and scalp specialist who wanted treatment to be a restorative pause rather than a rushed appointment. The business is built around scalp care and restorative ritual, drawing on the Japanese head spa tradition, and it keeps a limited number of guests each day.

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About

Sèra Thèa was founded by a hair and scalp specialist who wanted treatment to be a restorative pause rather than a rushed appointment. The business is built around scalp care and restorative ritual, drawing on the Japanese head spa tradition, and it keeps a limited number of guests each day.

A head spa visit begins with a scalp analysis and then moves through cleansing, exfoliation, a targeted treatment, massage and water rituals. Sessions run from 60 minutes to 2 hours depending on the treatment and add-ons, and include preparation, consultation and blow-dry time. Each session ends with a complimentary quick dry rather than a styled blowout. Clients don't need to shampoo beforehand, since every treatment includes cleansing. Head spas are for one guest at a time, and afterward guests can rest in The Nagori Lounge, a private room with tea, a place to change and a blow-dry station for up to 20 minutes.

Head spa treatments are named Saisē, Calm, Infuse, Revival, MUD and Awaken, priced from $150 to $300, and each is matched to a different scalp need, from sensitivity and dryness to buildup, bare scalps and thinning. Enhancements (an extended massage, a HydroJelly mask or a private foot soak) must be added to a qualifying head spa treatment, and which ones are available depends on the treatment. Facials use Circadia products. The menu also includes a 60-minute back ritual, a two-hour foot spa for two guests, and a silk press service for hair at least 8 inches long.

Private Nagori Experiences can be arranged by approval for bridal mornings, celebration days or private wellness days, and approved guests may coordinate with their own hairstylist, makeup artist or other beauty professional. Gift certificates are sold at $100, $200 and $300 and delivered digitally. The business says its pricing reflects longer appointments, premium products and extra time between guests for cleaning. Its treatments are not medical and are not meant to diagnose, treat or cure any condition, and guests with certain medical conditions are asked to check with a healthcare provider before booking.

Built around scalp care and restorative ritual, with products and techniques chosen for each treatment based on hair and scalp concerns. The business states its methods suit color-treated, chemically processed and sensitive scalps.

A private, quiet setting, with a lounge for resting after treatments.

Services

Final prices may vary.

A 60-minute back facial-style ritual with warm steam, a customized mask, scalp massage, herbal compresses and gua sha.

  • Sèra Thèa Back Renewal Ritual $175

Three 60-minute facials using Circadia products, aimed at tired skin, congestion and dehydration.

  • Autumn Glow $165
  • Healthy Harvest $165
  • Seasonal Skin Revival $165

A two-hour foot treatment designed for two guests, with a botanical soak and a lower-leg massage.

  • The Restorative Soak for Two $150

A wash, blow dry and silk press service for hair at least 8 inches long, taking about two hours.

  • The Elevated Wash & Blow Dry + Silk Press $195

Scalp-focused head spa treatments that each start with a scalp analysis and end with a quick dry.

  • Saisē Restorative Scalp + Hair Renewal $150
  • Calm Soothing Scalp Treatment $175
  • Infuse Scalp Rebalancing + Extended Massage Ritual $225
  • Revival Advanced Detox + Clarifying Scalp Treatment $250
  • MUD Signature Bare Scalp & Mineral Detox Ritual $275
  • Awaken Scalp + Density Support Treatment $300
  • Extended Massage Ritual (enhancement) $30
  • Signature HydroJelly Mask (enhancement) $35
  • Private Foot-Soak Ritual (enhancement) $75
  • Saisē $150
  • Calm $175
  • Infuse $225
  • Revival $250
  • MUD $275
  • Awaken $300

The same three add-ons, listed as their own group.

  • Extended Massage Ritual $30
  • Signature HydroJelly Mask $35
  • Private Foot-Soak Ritual $75

Photos

  • Nagori Lounge with cream sofas, windows and dusk view
  • Nagori Lounge seating area with sofas and refreshment station
  • Nagori Lounge vanity and styling chair by window
  • Treatment space with chair, bed and chandelier by windows

Meet the team

Their website doesn't list the team, so we don't either.

Highlights
  • Head spa rituals that begin with a scalp analysis
  • The Nagori Lounge, a private space with tea and a blow-dry station after treatments
  • Private Nagori Experiences for bridal mornings and celebration days, by approval
  • Gift certificates delivered digitally and usable toward eligible head spa services
  • A limited number of guests each day
Good for
  • scalp concerns
  • sensitive or easily irritated scalps
  • thinning or reduced density
  • bald or closely shaved scalps
  • guests who want a restorative pause
  • couples booking the foot soak for two
  • bridal mornings and celebration days
  • men and women 18 and older
  • regular head spa visits every 3 to 4 weeks
Treats
  • sensitive or irritated scalp
  • oiliness
  • dryness
  • itching
  • flakes
  • product buildup
  • everyday scalp stress
  • thinning or reduced density
  • congestion
  • tired or dull skin
Techniques
  • scalp analysis
  • cleansing
  • exfoliation
  • massage
  • water rituals
  • warm steam
  • customized mask
  • mushroom gua sha
  • Thai herbal compresses
  • simple extractions

Products & treatments

  • Circadia

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