Even with a healthy lifestyle, our body is exposed to oxidative stress, the natural decline in the synthesis of certain proteins (such as collagen) and the depletion of our cellular reserves. ETNA supplements are tools of nutritional engineering: they are designed to fill these gaps, optimize your physiology and support positive aging by nourishing your cells from within.

Absolutely. Cellular metabolism, muscle recovery and positive aging have no gender. Our formulas — notably our Sport & Performance and Vitality ranges, and our Collagen — are designed to optimize the physiology of every adult, man or woman, who wants to invest in their health capital.

The preventive approach of positive aging generally begins around the age of 25, when natural collagen production and cell renewal start to slow down. Our programs are formulated exclusively for adults looking to support their metabolism, their structure and their performance.

Yes, it is even at the heart of our “Long Term” philosophy. Cellular optimization and tissue regeneration (skin, bones, muscles) require consistency. Our dosages are physiological and calibrated for daily, continuous use, ensuring lasting results without overloading the body.

It all depends on the line you choose. Our Boost formulas are designed for fast action (energy, muscle relaxation). Our Long Term programs, such as Positive Aging or Nutricosmetics, work in depth on your physiological balance: the first structural benefits are generally seen after 3 to 4 weeks of regular use.

Nutritional engineering. We don’t just put ingredients together: we use cutting-edge encapsulation technologies and clinically calibrated dosages. This scientific rigor aims to ensure that each nutrient survives digestion so it can be absorbed by your cells.

Each ETNA formula meets a specific goal: vitality, sleep, digestion, beauty, performance or everyday comfort. You can use the site’s categories to identify the products that match your needs, then check their composition, directions for use and precautions. If in doubt, our customer service can help you compare the different formulas.

The full composition, active ingredients, recommended daily dose, any allergens and precautions for use are shown on each product page and on the label. We recommend reading this information before starting a program.

The time of intake depends on the formula. Some products are designed to be taken in the morning, with a meal or before bedtime. Always refer to the directions for use shown on the product page and on its packaging.

Yes. Our ranges are designed to create synergies: you can combine a program targeting structure (for example Collagen Tripeptides Complex) with a formula targeting energy (for example Energy Boost). Simply respect the daily doses indicated on each product. If in doubt, our customer service can help you build your nutritional plan.

If you miss a dose, do not double the next one. Simply resume your usual intake at the scheduled time, respecting the recommended daily dose.

We advise against it. ETNA’s effectiveness relies on our encapsulation technologies: our capsules are designed to protect the active ingredients from stomach acid and release the nutrients in the right place in the intestine. Opening the capsule compromises this bioavailability.

Store products in their original packaging, in a dry place, away from heat, light and humidity. After opening, follow any specific storage conditions indicated on the packaging.

We do not recommend it. After the best-before date, although the product is generally not dangerous, we can no longer guarantee the effectiveness and bioavailability of our active ingredients, particularly for fragile molecules or live strains.

All our programs are developed and produced in France, in our integrated manufacturing facility in the Hérault. As a contract manufacturer, we control the entire production chain, from formulation to encapsulation, with no middlemen.

We select only pure active ingredients, sourced for their high bioavailability. Our status as an in-house laboratory allows us to apply quality control at every stage, in line with current European standards, and to ensure the traceability of our raw materials.

Any allergens are specified in the composition of each product. Some formulas may contain fish, crustaceans, soy or other ingredients subject to mandatory declaration. Always check the label before use, especially if you have a known allergy.

Most of our capsules use a plant-based shell, and a large part of our range is formulated without any animal-derived ingredients. However, some formulas — notably in nutricosmetics and joint health — contain marine collagen from fish, which makes them unsuitable for a strict vegan diet.

Whether each product is vegan or not is stated on its product page, in full transparency.

The gut plays a central role in the absorption of nutrients. Including ferments in our formulas helps balance your intestinal flora and is part of our overall approach to positive aging, which sees the gut-skin axis as a foundation.

Regular digestive discomfort, low energy, a dull complexion or blemishes are often associated with an unbalanced microbiota. A probiotic program acts as a reset designed to restore this foundation. If symptoms persist, the advice of a healthcare professional remains essential.

That is ideal. Taken in the morning on an empty stomach, 15 to 20 minutes before breakfast, probiotics pass through the stomach more quickly, as its acidity is lower at that time: this way, a maximum of live strains reach the intestine.

To have a lasting effect on the balance of the intestinal flora, our laboratory recommends a program of at least 1 to 3 months.

Our formulas comply with the French and European regulations applicable to dietary supplements and are generally very well tolerated. However, slight temporary digestive discomfort may occur at the start of a program, particularly with probiotics, while the flora adapts.

It is important to always follow the recommended dosage and not to exceed the indicated daily dose. A dietary supplement is not a substitute for a varied and balanced diet or a healthy lifestyle.

Pregnancy and breastfeeding are special physiological periods. As a precaution, we always recommend checking with your doctor or gynecologist before taking any supplement.

If you are on medical treatment, have a medical condition, a scheduled procedure or specific medical follow-up, ask your doctor or pharmacist for advice before starting a program. Some substances may interact with medicines.

Our supplements are formulated to support every adult, whatever their age and goals: sport, beauty, vitality or sleep. However, they are not intended for children and teenagers, and certain situations (pregnancy, breastfeeding, medical treatment) require prior medical advice.

A one-time purchase is a single order, paid for in one go with no automatic renewal. A subscription lets you receive the selected product regularly at the frequency you choose and benefit from the discount associated with the plan.

ETNA offers a monthly plan with one box every month, a quarterly plan with three boxes every three months and a six-monthly plan with six boxes every six months. The discounts and conditions that apply are specified on the product page and on the “Offer Terms” page.

Yes. A subscription order is renewed automatically at the frequency you choose, until it is canceled. The corresponding amount is charged at each new billing cycle, as specified when you subscribe.

You can manage your subscription from your customer account, in the dedicated section. Requests to change or cancel must be made before the next order is prepared. The exact deadline is specified in the subscription terms.

Whether you can pause a billing cycle depends on the features available in your customer account. When this option is available, it must be used before the next order is prepared.

Unless otherwise stated, promo codes cannot be combined with discounts already applied to subscriptions or multi-box offers. The conditions specific to each code are specified at the time of the promotion.

The code must be entered in the dedicated field in the cart, before confirmation and payment. A discount cannot be added to an order that has already been confirmed.

A customer account lets you find your orders, addresses, subscriptions and personal information. You can create an account directly during checkout.

An order can only be changed or canceled if it has not yet been sent for preparation. Contact our customer service quickly with your order number. Once the order has been prepared or shipped, it can no longer be changed.

When your order is shipped, tracking information is available in your customer account and sent to you by email. You can also check the status of your order in the “Order history” section.

First check your spam folder and the email address entered in your account. If no message appears, check your order history or contact our customer service to make sure the order has been recorded.

Delivery times depend on the delivery method, the destination and when the order is placed. An estimate is shown before you confirm your cart. Full details can be found on the “Shipping” page.

Costs are calculated according to the destination, the delivery method and the order amount. They are shown in the cart before payment. Some offers or subscription plans may qualify for free delivery, under the stated conditions.

The list of available countries and territories appears when you enter your delivery address. The restrictions and conditions specific to each zone are detailed on the “Shipping” page.

Check with anyone at your address, your neighbors or the drop-off point that may have been indicated by the carrier. If the parcel still cannot be found, contact our customer service quickly with your order number and tracking information.

Take photos of the parcel, its label and the products received, then contact our customer service as soon as possible. State your order number and the nature of the problem so that your request can be dealt with quickly.

The available payment methods are displayed when you place your order. They may vary depending on the country, the order amount or the plan selected.

Payments are processed over a secure connection and by the payment providers presented during checkout. ETNA does not keep your full bank details.

A payment may be declined for various reasons: incorrect information, bank limit reached, expired card or a security check by your bank. Check the details you entered or contact your bank before trying again.

Before making any return, contact customer service to find out the procedure, the return address and the applicable conditions. Products must be returned in the condition required by the General Terms and Conditions of Sale.

For reasons of health protection and hygiene, products that have been unsealed, opened or used cannot be taken back. The exact conditions and exclusions are specified in the GTCS and on the “Returns and refunds” page.

The refund is made after the return has been received and checked, within the time frame set out in the General Terms and Conditions of Sale. It is made using the payment method used for the order, unless otherwise agreed.

Do not throw away the product or its packaging. Contact customer service with your order number and a photo of the products received so that a solution can be offered.

You can contact our customer service using the form available on the site or by email. For a request related to an order, remember to include its number to help us process it.