frequently asked questions

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Find answers to the most frequently asked questions in this section.

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Buy 3, get the 4th free

To take advantage of this offer on several product ranges, simply add 4 products from the same range to your basket, then apply the appropriate promo code at checkout - for example "MULTI-SPRAYS" if you're buying sprays. The discount will automatically be applied to your basket.

You can add other 'multi' offers to your basket, each time adding the appropriate code, and the discounts will be cumulated, but you cannot combine these offers with another discount code.

questions about your orders

WHAT PAYMENT METHODS ARE ACCEPTED?
You can pay by credit card, bank transfer, cheque or PayPal. Please note that for payments by check or bank transfer, your order will be processed upon receipt of your payment.

ARE SHIPPING COSTS FREE?
Shipping costs are free for all orders over €150 within mainland France. For all other orders, shipping costs will be calculated automatically when you validate your basket, according to the amount, weight and country of delivery.

WHAT ARE THE DELIVERY TIMES?
please allow between 4 and 6 working days for delivery in mainland France. Delivery times may vary depending on the delivery zone and will be indicated in your tracking email.

DO YOU DELIVER INTERNATIONAL?
Yes, we deliver all over the world.

WHY CAN'T I ORDER FROM SWITZERLAND?
All orders from Switzerland can only be placed through our website nellygrosjean.ch

I STILL HAVE NOT RECEIVED MY ORDER, WHAT CAN I DO?
You can send a complaint to our customer service department at info@biossentiel.com , stating your name and order number.

product use and storage.

HOW LONG CAN I KEEP MY ESSENTIAL OILS / HYDROSOLS AFTER I HAVE OPENED THE BOTTLES?
Our tinted glass bottles guarantee a long shelf-life for essential oils. They keep perfectly well for several years. If you no longer use them internally, they are still suitable for aromatic diffusions.

More fragile than essential oils, hydrosols can only be stored for a few months. Deposits may appear, but a simple paper filter is all that's needed to clean the hydrosol. To be consumable, its odor must remain unchanged: fermentation due to poor storage renders it unusable. It can be kept for between three and eighteen months after distillation.

Always store your products in a dry, dark place, in a cool place if you wish.

HOW MANY DROPS DO THE ESSENTIAL OIL FRICTION BOTTLES CONTAIN?
A 30ml bottle of BBS Synergy is sufficient for three weeks' use at a rate of 20 drops morning and evening (for most treatments). They therefore contain around 840 drops per bottle. 250 drops in 10ml.

CAN I DRINK SEVERAL HYDROSOLS A DAY?
For a three-week course of hydrosols, it's advisable to choose two hydrosols and drink them every other week for greater effectiveness.

However, it is not inadvisable to drink different hydrosols during the day (for example, biÔpurify tonic during the day and biÔrelax before bedtime).

CAN I USE SEVERAL ESSENTIAL OILS IN SUCCESSION? HOW LONG SHOULD I WAIT BETWEEN EACH APPLICATION?
In many treatments or cures, several essential oil synergies should be used in a complementary manner. There's no risk in applying them one after the other.

In case of irritation, space out applications and dilute synergies in an organic vegetable oil of your choice.

IS YOUR CASTOR OIL EDIBLE? CAN I USE IT FOR PURGES?
yes, our HDR oil is a 100% organic, virgin, cold-pressed castor oil specially selected for internal use to carry out the castor oil dry purge. This quality oil can also be used for all your external treatments (beauty, poultices, etc.).

caution: purges are drastic cleansings that are best avoided without preparation. Before carrying out a castor oil purge, be sure to read the precautions for use and the instructions for use from nelly grosjean (chapter 3 Cure Zen Detox Aromatic' tome 1) or from your regular therapist. Do not use castor oil purge without first reading these instructions.

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can't find the solution on our website?

HOW TO DOWNLOAD THE BOOKS?
Simply add the book of your choice to your basket, then enter your contact details to receive it by e-mail. Remember to check your spam folder if you don't receive it in your mailbox within a few minutes of placing your order.

HOW TO FIND PRODUCTS?
If you're looking for a particular product, use the magnifying glass icon at the top left of your screen and enter the product name.

I CAN'T GET THE PROMO CODE TO WORK ON 4 PRODUCTS PURCHASED 1 OFFERED.
First check that you're using the right promo code for the right products: promo codes are only valid on 4 products of the same family purchased. (example: 4 single hydrosols purchased, the 4th offered with code MULTI-HYDROSOLS)

Also remember to add all 4 products to your basket before entering the promo code.

also check the correct spelling of the promo code as indicated on the product pages. (example: MULTI-HYDROSOLS in capitals and with the hyphen).

I HAVE ENTERED A PROMO CODE BUT IT DOES NOT WORK ON MY WHOLE BASKET.
if you use a promo code other than 3 buy 1 get 1 free, check that the products you have in your basket are not excluded from the promotion.

the following products are not included in the promotions unless indicated: marine plasma, castor oil, tulsi lax, discovery kitchen appliances (see information provided with promo code).

THE WEBSITE DOES NOT RECOGNIZE MY E-MAIL WHEN I HAVE ALREADY ORDERED, WHY?
Most often it's because you placed your first order as a guest and not by creating your account. Try creating a new account with the same e-mail address to check. If you encounter any further problems, please contact our support team.

you need advice about purging

HOW TO PURGE? WHAT IS IT FOR?
You'll find all nelly grosjean's advice on how to purge in chapter 3 of the Zen Detox Aromatic Cure, available as a free download in the "books & ebooks" section of our website.