PARIS — Augustinus Bader is opening its largest branded spa, called La Piscine, at the Hôtel Costes in Paris on Monday.

The sweeping 10,350-square foot location, on the hotel’s minus-one floor, has seven treatment rooms, including one double.

Charles Rosier, Augustinus Bader chief executive officer and cofounder, worked closely with Jean-Louis Costes and his wife Marie-Laure Ettori on the spa, which was designed by Christian Liaigre. His furniture decorates the place.

There are two reception areas, plus a view onto the 65-foot pool, open to hotel guests.

Rosier began talking with Costes about the idea of a spa in 2019, a year after the beauty brand was launched. More recently, enormous work was done at the hotel. Its spa area’s footprint was tripled as the hotel expanded into neighboring buildings. The pool size was modified, as well, and a gym implemented.

After visiting the site for four years, Rosier said: “It’s very exciting to see it come to life.”

Christiane Werron, executive director global education and spa distribution at Augustinus Bader, said La Piscine is meant to make each guest feel like they have entered their own sanctuary.

“We have an outstanding kind of architecture that is bringing this indulgent touch to every client that enters the spa area,” she explained.

For protocols, she took a cue from the Augustinus Bader method, which supports skin in its daily renewal process, explained Werron. That’s boosted by the brand’s proprietary trigger factor complex, or TFC8, which acts on cellular communication and repair.

The protocols are personalized for each spa partnership, which includes iconic hotels such as Claridge’s and the Corinthia in London, The Mark hotel in New York, and Bulgari Hotels in Milan and Rome, for instance. Altogether, Augustinus Bader is in around 100 spas worldwide.

The brand runs, as well, The Skin Lab in London and New York.

Augustinus Bader bespoke treatments start with a skin diagnosis. “We are then able to give proper consultation to the guest when it comes to four different treatment options and the possible add-ons,” said Werron. “We always ask the client what and how do you like your skin to look and feel afterwards?”

Alongside facials there are also full-body experiences. For them, high-tech devices are mixed with manual treatments, such as cleanses, masks and fascia-stimulating massage.

The hour-long Essential facial was conceived to activate, regenerate and revitalize skin using TFC8 technology. It costs 280 euros. The 90-minute Ultimate facial is for resculpting, firming and rejuvenating skin. That entails TFC8, as well as Raja Medical technology, ultrasound and microcurrent, and is 420 euros.

The AB Signature body treatment, for face and body, uses a mix of technologies. The two-hour treatment goes for 480 euros.

The spa at the Costes is the only location in France to boast the Bewei radio-frequency device for hand treatments. A half-hour session runs 130 euros.

It is also the first spa country-wide to offer the Absolute Glow Vitamin C treatment, which is combined with Raja Medica microdermabrasion technology. The 75-minute protocol is priced at 350 euros.

The menu of purely made-to-measure treatments includes massage, osteopathy and physiotherapy consultations. A ritual and massage for feet, manicure and pedicure, plus other additional services, round out the offer.

Augustinus Bader, which has always been rooted in science, recently partnered with Deepak Chopra on a health span and longevity-related AI platform, called AB Chopra Epigenetics.

“Some of the latest devices we’re identifying and working with could be used in such a [spa] space, as well,” said Rosier. “So that’s going to be very interesting and exciting. The plan is really to constantly update the offer with the latest technologies.”

He considers spas as an elevated, curated experience for people to discover a brand.

“You have time to see the effect of the product on your skin,” said Rosier, adding it also gives the possibility to talk about the brand with a practitioner while one’s relaxed.

“We all have these hectic lives, and when we give ourselves the time for a facial treatment or massage — me time — it’s a very special moment,” he said. “To be part of that experience for us is obviously a privilege.”