Professional Treatment Sale - Kallista Institute

Summer and winter sales sitewide

Sales are the perfect opportunity to treat yourself, refresh your essentials, or discover new professional treatments at reduced prices.

At Institut Kallista, we see sales as a special occasion, true to our philosophy: demanding treatments, recognized professional brands, and a refined shopping experience, from product selection to delivery.

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

Enjoy the sales at Institut Kallista

Combine advantage and peace of mind by enjoying our sales:

  • Official professional treatments 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 sales, we remain true to what makes us different: the quality of our support and trust.

Summer and winter sales conditions

During sales:

  • Offers are valid across the entire site
  • They cannot be combined with other promotional codes (birthday, loyalty) and already discounted products,
  • Orders placed during this period do not accumulate loyalty points,
  • Certain products may be available in limited quantities.

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

European Sales

Our summer and winter sale offers are available to all our customers, French and European. To ensure fairness between each country and each of our customers, you will have the opportunity to order your favorite products at an advantageous price, whether from France, Belgium, Luxembourg, or any other European country.

We ship all our products (excluding Sothys, only in France) throughout Europe via UPS. Delivery is fast, reliable, and secure.

Institut Kallista customer service during sales

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

You can contact us Monday to Friday, from 9 AM to 5 PM:

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 site 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.

Exclusions may apply to products already discounted.

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. Sales cannot be combined with other promotional codes, birthday offers, or loyalty benefits.

Also, loyalty points are not accumulated 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 team is available throughout the sales period to advise and assist you by phone, email, or online chat, during regular hours.

During this busy period, response times may be slightly longer.

Can we be delivered in Europe during the sales?

Absolutely!

During the sales, we continue to ship all our products (excluding Sothys) throughout 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.