Frequently Asked Questions

A skincare brand with discernment. We select products from various brands, explain why they are included in the catalog, and guide you to ensure your routine makes sense. No endless catalog, no grand promises.

Each product passes through three filters before being included: real evidence behind its formulation, clear fit within the NUT Method, and a specific role in a routine. If it doesn't meet all three, it's not included. That's why the catalog is intentionally small.

COSMONUTS S.L., a project founded in Barcelona by Carolina and David. We are not a marketplace that sells everything. We are a brand that organizes what makes sense.

Yes. No brand in our catalog is on the BDS (Boycott, Divestment, Sanctions) movement's boycott list. Brands and corporate groups that the movement identifies as complicit in human rights violations are excluded from our selection. This decision is consistent with our values as individuals and as a company.

A simple way to care for your skin in three steps: understand what's happening to it, simplify what you use, and sustain a routine you can maintain over time. It's not a promise, it's a structure.

No. The method is a framework, not a straitjacket. It helps you decide when in doubt; not complicate things when there are none.

Yes. The method helps to understand and simplify. What changes between one skin type and another are the products that fit, not the logic that organizes them.

From the main menu of the website. It takes you to a short conversation: NUT asks you questions to understand your skin's condition and, at the end, suggests a coherent routine with the catalog products that best fit. You can use it as many times as you like.

A digital guide that helps you understand what your skin needs and to choose wisely within the catalog. It asks questions, organizes information, and proposes a coherent routine. It learns from you, it doesn't push you to buy.

No. NUT is a guide for cosmetic decisions: it does not make medical diagnoses or replace professional consultation. It helps you read signals and choose wisely within the catalog. If you have a skin condition, the correct thing to do is to see a dermatologist.

It uses it to personalize your recommendation and improve the system. It does not sell or share it outside of what is indicated in our Privacy Policy, and you can ask us to delete it at any time.

Fewer than you think. A minimum viable routine is usually three steps: cleanse, treat or moisturize, and protect. The rest is optional and depends on your skin's condition.

It depends on the product and the goal. Good hydration is noticeable quickly. Actives that work on skin renewal need weeks, not days, and are noticeable with consistent use. Consistency matters more than haste.

Yes. What matters is the logic of the routine, not that everything is from the same brand. What should be reviewed is the compatibility between actives.

No. In the morning, you protect: gentle cleansing, hydration, SPF. At night, you repair: cleansing, actives if applicable, hydration. They serve different functions.

The first step is to remove what is altering the barrier. Then it is rebuilt with gentle products, and only when the skin is stable are actives reintroduced. NUT guides you step by step.

Because not all well-known brands meet our entry criteria. It's not a personal assessment, it's a catalog decision. We prefer a short catalog with clear criteria over a long one without it.

Most products in the catalog are vegan, though not all. Each product page indicates if it is, so you can make an informed decision.

Regarding cruelty-free, the status depends on each brand and the markets in which it operates. When a brand explicitly states its policy, we include it on the product page. If you have questions about a specific brand, please write to us.

It depends on the product. On the product pages, we indicate actives not recommended during these months (retinol, salicylic acid in high concentration, among others). It's prudent to check with your healthcare professional. NUT can also help you build a routine without contraindicated actives.

No. We prefer to invest in complete information before purchase: why each product is in the catalog, who it's for, how to use it, and when it's not suitable. The idea is for you to make a discerning purchase, not blindly.

First, consider the context: how long you've been using it, if it's part of a coherent routine, if your skin is stable. If it still doesn't fit after that, we can help you find an alternative. And if you are within the return period, you can return it.

At room temperature, away from direct light and excessive humidity. Actives like vitamin C or retinol are more sensitive: close them tightly after use and respect the PAO indicated on the packaging. PAO is the symbol of an open jar with a number of months, and indicates how long the product can be used after opening.

Visa, Mastercard, American Express, Bizum, PayPal, Apple Pay, Google Pay, and Shopify Pay. Payment is processed securely through Shopify.

We ship with Correos. Estimated delivery times are 2–4 business days to mainland Spain and 4–6 business days to the Balearic Islands, once the order leaves the warehouse.

Currently, we ship to mainland Spain and the Balearic Islands. If you are in the Canary Islands, Ceuta, or Melilla, please write to us at info@bynut.es and we will manage the shipment personally. We are working to expand destinations soon.

As soon as your order leaves the warehouse, you will receive an email with the tracking number and a link to check its status at any time.

Yes. You have 14 days from receiving your order to exercise your right of withdrawal. You can open the packaging and examine the product, just as you would in a store. The only exception is cosmetic products whose hygiene seal has been broken: for hygiene reasons, in this case, returns are only accepted if there is a defect.

Write to us as soon as possible with photos of the product and packaging. We will resolve it at no cost to you.

It's not mandatory. You can buy as a guest. Creating an account allows you to save orders, track your history with NUT, and receive more refined recommendations.

With the rigor required by regulations and the care you would expect for your own. Full details in the Privacy Policy.