Why do you test your products for Endocrine (hormones) Disruption?

Because during puberty or pregnancy, the body is more sensitive to all hormones and to endocrine disrupting chemicals or EDCs (these chemicals mimic the hormones). EDCs that disrupt the oestrogenic cycles are the most worrying ones. These chemicals are known to affect the male fertility, cause ovarian diseases including cancer, can damage the foetus, trigger learning problems for children and many more. They are like long term time bombs

The endocrine disrupting chemicals are a new area of health concern flagged by scientists starting in 2000s. There is little regulation around the world. In the EU, there is a list of ingredients that are known (phthalates, parabens, BPAs, etc) or suspected to be endocrine disruptors, so avoiding these ingredients in skincare formulation is the first step. But it is not only the individual ingredients that can be problematic. Endocrine disruption can also result from non-suspected ingredients through a process of a chemical ‘cocktail effect’ when ingredients get mixed. This is why Skin Diligent screens all ingredients and tests the final products for oestrogenic endocrine disruption

The regulations are way too slow. Finding consensus among lobbying chemical companies, lobbying pharmaceutical companies, other parties with invested interest in the status quo, the various science groups and the government (supposedly the defender of consumer safety) is a very, very long process.

We believe it is rare for skincare or cosmetic brands to test for endocrine disruption, and in fact, we suspect we are one of the first brands to commit to this.

We wanted products that were truly safe for young people, beyond regulatory safety definition.

Why don't you use retinol or benzoyl peroxyde?

We do not want to use ingredients that can sensitise the skin (ingredients that can make the skin react or become allergic) like retinoid (or retinol, tretinoin or other derivatives of vitamin A). Benzoyl peroxide (BP) is an oxidising compound that damages human cells (can be used to bleach fabrics or whiten flour). BP is used in acne treatment because of its antibacterial activity. When BP comes into contact with the skin, it has the ability to start an inflammatory cascade leading to oxidative stress (that can lead to DNA mutation and cell damage).

Skin Diligent's skincare formulations use natural and hypoallergenic ingredients without undesirable side effects. 

How long will the Acne-prone Skin kit last?

The Acne-prone Skin kit is formulated to be used in 1 month. The food supplement contains a 30-day supply and the 3-step skincare products should last for at least 4 weeks. 

How long do I have to use the Acne-prone Skin kit to see results?

The length of time depends on many factors. The most important is consistency of use. You must use the skincare morning and night and take 3 small food supplements capsules daily.

On average, we estimate 2-4 months of Acne-prone Skin Solution to see results. But it can be more or less depending on individual's health condition and habits.  

Changing some habits will improve acne, for example, consuming anti-inflammatory diet (food rich in antioxidants like green vegetables), managing stress levels, cutting down sugar (like high consumption of crisps, sugary biscuits or even plain pasta), improving sleeping patterns and maintaining generally good health. 

You can also read our section on the 12 Tips to Get Rid of Acne

Why do I need the food supplement?

Acne & Stress food supplement contribute to the normal function of the skin, collagen, immune and nervous systems as well as it regulates the hormonal activity. Acne & Stress reinforces the body's with antioxidants. And the combination of all these targets improve the health and acne.

Food supplements should not be taken as a replacement to a healthy diet.

Are your products vegan?

Our food supplement is vegetarian and vegan. It is also free from GMO, gluten, soy, dairy and bulking agents.

Our skincare is also vegan.

Why do you use parfum?

We chose to add around 0.5% of parfum in our products to offset some of the natural smells of raw ingredients. In our early tests, the natural smell of our product (without the parfum) made it difficult for our testers to be used consistently. 

Our parfum doesn't contain any of the 26 EU regulated known allergens (geraniol, limonene, linalool, etc), or other nasties like acetone, benzaldehyde, benzyl acetate, benzyl alcohol, camphor, ethanol, ethyl acetate, methylene chloride as well as phthalates, stearates, and parabens.

Our parfum also passed the endocrine disrupting chemicals test. 

Can I use the Acne-prone Skin kit as an adult?

Yes, the kit is effective for both teens and adults, including pregnant and lactating women. All our skincare has been tested for endocrine disruption, is hypoallergnic, non sensitising, non irritating.
To learn more about the differences and similarities between young people's acne and adult acne, click here.

Is Skin Diligent packaging recyclable?

Yes, 100% recyclable. This includes our skincare tubes and all our shipping boxes.

The plastic tubes for our skincare contain a minimum of 50% recycled plastic (varies from 50-80%). Our goal is to use 100% recycled plastic as soon as we can guarantee the full stability and compatibility of our formula with 100% recycled plastic packaging.

For our food supplement, we use a 100% biodegradable and compostable plastic. It is a EU certified for use with food and pharmaceutical products. Made from sugar, it is a vegetal-origin and renewable-source material. The sugar sourced from excess sugar capacity in developing countries in south-east Asia, helping farmers in with more stable sugar prices.

Sustainability is an integral part of our ethos and it is not only about plastics. We work with a supply chain that holds ethical sourcing to its highest standard. Read more about our commitment to sustainability and ethical sourcing here

My Order

I made a mistake in my order

Please email us ASAP at and describe the issue. We will do our best to help you. If the order hasn't shipped out, it will be easier for us to assist you. Once the order has been shipped, you will have to go through the return process. 

What delivery options do you offer?

All our delivery options can be found here.

Returns and refunds

Your 100% satisfaction is important to us. We offer a 14-days Return & Exchange Policy:

If a product was damaged or faulty at delivery - you can choose between a replacement or a refund. We have a 14-days Return & Exchange Policy, from the day the item was received. To be eligible for a return, goods must be unopened, unused, undamaged and accompanied by a proof of purchase (your original email purchase confirmation). To start a return, please email with the subject 'Return' and include your order number, your name and the reason for the return. Items sent back to us without first requesting a return will not be accepted. If your return is accepted, we will provide you with the instructions on how and where to send returned goods. You are responsible for the package until it reaches us. Please note that you are responsible for the shipping costs of returned items. When the returned item is received and inspected by us, you will receive a confirmation email, notifying you about the status of the refund. If the refund is approved, then it will be processed and a credit will automatically be applied to your original credit card or payment method minus the initial shipping costs. If you do not have the original card you paid with, we cannot offer you a refund but we will give you an exchange or gift card for the same amount. Unfortunately, we cannot accept returns on sale items or gift cards.

You can contact us for any return question at

How can I track my order?

After we ship your order, our carrier will send you a delivery notification by email to the email address you provided at check-out.

What happens if I'm not home to receive my delivery?

We use Royal Mail for UK deliveries, thereby giving you maximum flexibility and convenience. They will text you delivery timing information if you have provided us with your mobile number at check out.

If you are not home to accept your delivery, Royal Mail should leave you a calling card informing you that they missed you. The card should also inform you where the parcel is and how you can collect it.

Do you ship internationally?

Yes, we can. However, you may incur extra charges imposed by the customs of your country, such as an import tax or other duties. These charges are your responsibility. Please see all our international delivery options here.

We also have a dedicated French website here with prices in EUR, to avoid any custom duties or possible delays post Brexit.

How can I benefit from Skin Diligent referral program?

Click on the green gift icon on your screen and follow the steps to register. 

When you refer a friend, both you and your friend benefit.

Do you offer a monthly subscription?

At this stage we prefer to give you the freedom to buy the products when you need them. But, if you create an account, you will receive discounts for repeat orders and many more benefits.

Any other burning question?

Send us an email at and we will reply to you asap.