Questions you may have

Questions you may have

  • How to choose between Lactolerance 1Day, 4500 and 9000?

    A daily capsule of Lactolérance 1Day protects 24 hours a day, whatever the level of intolerance.
    One capsule of Lactolérance 4500 (moderate intolerance) or 9000 (severe intolerance) protects for 45 min to 1 hour.

    For the first use we recommend Lactolérance 9000, because it is effective immediately, from the first use.

    If the experience is positive, try Lactolérance 1Day, effective after an adjustment period of about a week. During this period, we recommend the association of Lactolérance 1Day with Lactolérance 9000.

  • What are the costs and delivery times?

    Same day shipping for orders placed before 2:00 p.m.
    Delivery within 24 to 48 hours (excluding weekends).

    Point Relais: free delivery
    At home: € 5, free for purchases of € 50 or more.

  • Can children take Lactolérance?

    Lactolerance 4500 and 9000: from 3 years old.
    1Day Lactolerance: from 6 years old.

    It is possible to open the capsule and dissolve the powder in a (cold) liquid, without affecting the effectiveness.

  • How long is it effective?

    One capsule of Lactolerance 4500 or 9000 protects for 45 minutes to 1 hour.
    A daily capsule of Lactolérance 1Day protects 24 hours a day.

  • Are there any side effects?


  • How to store the capsules and what is the shelf life?

    Protect the capsules from heat and humidity. The bathroom is a bad idea. In summer, the refrigerator door is the perfect place.

    Minimum shelf life of Lactolerance 4500 and 9000: 2 years minimum.
    Lactolérance 1Day: date indicated on the product page.

Why choose Lactolérance?


  • 100% natural
  • Laboratory tested
  • Available in pharmacies
  • Proven effectiveness


  • Personalized advice
  • Free 24h-48h delivery in Point Relais
  • Loyalty program
  • Subscriptions available without obligation


  • Caring Customer Service
  • Satisfied or 100 % refunded
  • Same day shipping for orders placed before 2:00 PM (excluding weekends)

They testify


based on 234 reviews last 12 months

Verified Reviews

Since I take a single 1Day capsule, no more worries when consuming a dairy product and no more having to walk around with capsules just in case. One a day and everything is settled.

Annie H.


I no longer have a stomach ache !!!!! I can again eat cottage cheese and products containing lactose without being afraid of pain and diarrhea! I take the one day Thank you !!!!!

Emilie T.


My 16 year old son has been lactose intolerant for many years thanks to the "lactolerance" products, he can afford to deviate from his lactose free diet. The products are very effective and the site very serious. Thanks to Lactolérance!

Christiane K.


Lactolerance has been preventing me from having very violent crises due to lactose for 2 years now. (Pain and vomiting). I gained an incredible comfort of life. Always super fast delivery! I recommend with my eyes closed and could not do without it. Thank you !

Stéphanie F.



Pascal I.


Easy navigation, quick order reception and very good quality products

Eliot J.

Who is Lactolérance 1DAY for?

Lactolerance 1DAY is designed for all degrees of intolerance.

The lactase produced by its lactic ferments* facilitates the digestion of lactose on a permanent basis, throughout the day. It is thus possible to consume lactose at any time, at each meal if you wish, without having to read the labels and without having a capsule with you. 

How to use Lactolérance 1DAY

Lactolerance 1Day requires only one capsule per day, to be taken daily with a glass of water, before a meal.

Adaptation time: As with all probiotics*, an adaptation time of about 7 days is necessary. During this period, it is recommended to take Lactolerance 1Day once a day as well as Lactolerance 9000 with each lactose intake.

How long does Lactolerance 1DAY work?

Lactolerance 1Day protects you all day long.

After 6 weeks of use, its effectiveness can last up to 72 hours, which is useful if you forget!

What are the ingredients of 1DAY Lactolerance?

Lactolerance 1Day contains a unique combination of 6 specially selected lactase-producing lactic ferments.

Acacia gum.

6 lactic ferments: Bacillus coagulans, Bacillus Subtilis, Bifidobacterium animalis, lactis, Lactobacillus casei, Lactobacillus rhamnosus and Streptococcus thermophilus.

Envelope: vegetable gelatin (HPMC).

Vitamin C

Rice flour

Gluten-free and lactose-free 

Can children take Lactolérance 1DAY?

From 6 years old.

Precautions : To be taken as part of a varied and balanced diet and a healthy lifestyle.

Do not exceed recommended doses. Keep out of reach of children.

How to store Lactolérance 1DAY and what is its shelf life?

Shelf life : 1 year minimum, see packaging.

Store in a cool, dry place. Avoid the bathroom.

Nutritional information

Lactic ferments: 5 billion C.F.U*, minimum guaranteed contents at expiry (10 billion C.F.U** at the time of manufacture)

Vitamin C: 27 mg - 33% of recommended intake.

Lactolérance 1Day benefits from a total "satisfied or reimbursed" guarantee for 60 days on request.

Offer limited to 1 refund per household (same name, same address)

* Although legally tolerated in Spain, Italy and the Netherlands, the term "probiotic" is prohibited in the European Union by EFSA.

** C.F.U : Colonies Forming Unit.

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