Professional Treatment Sale - Kallista Institute

Summer sales & winter sales across the entire site

Sales are the perfect opportunity to take care of yourself, renew your essentials or discover new professional treatments at more affordable prices.

At Institut Kallista, we have chosen to experience the sales as a special moment , true to our world: demanding treatments, recognized professional brands and a carefully curated shopping experience, from product selection to delivery.

During the summer and winter sales, you benefit from an exceptional discount across the entire site : Sothys, Guinot, Thalgo, LPG, Maria Galland and Mary Cohr, while maintaining the same quality, the same authenticity and the same level of service.

Take advantage of the sales at Institut Kallista

Combine convenience and peace of mind by taking advantage of our sales:

  • Official professional skincare products from recognized brands
  • Expertise of an institute in selection and advice
  • Controlled stock and authentic products
  • Free samples from €25
  • Human, available and attentive customer service

Even during the sales, we remain true to what makes us different: the quality of our support and trust.

Summer and winter sales conditions

During the sales:

  • The offers are valid across the entire site
  • They cannot be combined with other promotional codes (birthday, loyalty).
  • Orders placed during this period do not generate loyalty points.
  • Some products may be available in limited quantities.

The exact conditions of current sales will always be specified on this page when they are active.

Institut Kallista customer service during sales

Even during sales periods, our team remains available to advise and assist you with your purchases.

You can contact us from Monday to Friday, from 9am to 5pm:

During peak periods, response, preparation, and shipping times may be slightly longer. We make every effort to ensure that each order is handled with the utmost care.

FAQ Sales

Do the sales apply to the entire site?

Yes. During the summer and winter sales, the entire Institut Kallista website is included: Sothys, Guinot, Thalgo, LPG, Maria Galland, and Mary Cohr . All categories and all brands benefit from a discount, under the conditions specified on this page.

How long does the sale last at Institut Kallista?

Sales at Institut Kallista take place over a pre-defined period , communicated directly on the website when offers are in progress.

Depending on the season and our business decisions, we don't necessarily follow official national sales dates. This flexibility allows us to offer sales at the most opportune time, while guaranteeing clear and transparent terms for our customers.

Can the sale offers be combined with other benefits?

No. Sale discounts cannot be combined with other promotional codes, birthday offers, or loyalty benefits. Loyalty points are also not accrued during this period. This rule ensures clear and fair conditions for everyone.

Are quantities limited during the sales?

Some items may be offered in limited quantities, depending on stock availability. Once stocks are depleted, the products in question are no longer available at discounted prices.

Are delivery times affected during sales periods?

Due to the high volume of orders during the sales period, order processing and shipping times may be slightly longer. However, we are doing everything we can to ensure that each order is processed carefully and promptly.

Can I contact customer service during the sales?

Of course. Our customer service remains available throughout the sales period to advise and assist you, by phone, email or online chat, during normal business hours.

Peut-on être livré en Europe pendant les soldes ?

Tout à fait !

Pendant les soldes nous continuons d'expédier l'ensemble de nos produits (hors Sothys) dans toute l'Europe.

Summer & Winter Sales: Professional Skincare by Brand

The summer and winter sales at Institut Kallista are the ideal opportunity to find all the professional brands offered on the site , at more favorable conditions.

You can therefore take advantage of the Sothys sales , the Guinot sales , the Thalgo sales , but also the LPG sales , the Maria Galland sales or the Mary Cohr sales , on all of their available ranges.

The products offered are the same all year round: authentic skincare, actual stock levels, and careful shipping. Sales thus become a perfect opportunity to confidently refresh or complete your beauty routine.