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Product Testing and Purity

Yes, we are sourcing our ingredients from GMP certified companies and all of our products are manufactured by GMP certified manufacturers.

Yes, our NMN has been lab-tested by a leading UK laboratory. All of our NMN is 100% pharmaceutical grade with the highest purity. Please see below for the lab results for purity, stability and heavy metals analysis.

Purity Report

Stability Report

Heavy Metals Report

Yes, our NR was tested to have around 100% purity by a 3rd party lab. Please see the report below.

NR Purity Report

Yes, the amount of Beta Glucans and Erinacines was found to be even higher than our targets. Please see the 3rd party report below.

Beta Glucans and Erinacines Ratio

Storage and Stability

Once opened, liposomal products need to be refrigerated and consumed within 6 weeks. Before opening you can store them in a cool, dark place but please ensure it is not hot as overheating can affect the integrity of the product. If you have accidentally left the product out of the fridge, don't worry, the product is probably still fine, as long as it hasn't separated - please do put it back in the fridge as soon as possible. Additionally, do not add the Liposomal to hot drinks or mix in blenders as it will also destroy the integrity of the liposomes.

We recommend to store our NMN powder refrigerated to preserve its quality and integrity, especially if you live in a hot country.

We recommend to store our Capsule products in a cool, dark cupboard, away from direct sunlight. However, for our NMN and NAD Max products, we do recommend to keep those refrigerated.

NMN will degrade in hot and humid temperatures. We recommend you store your NMN in a refrigerator or a very cool environment. We ensure that our NMN is stored in a refrigerated/cool environment throughout the manufacturing process and while awaiting shipment at our storage facilities.

Maximizing Effectiveness

We recommend NMN powder to be taken in the morning and placed under the tongue as that allows it to be absorbed faster and has a higher bioavailability because it is absorbed by the capillaries in your mouth, instead of your stomach like most supplements. It can also be combined with Preservage to boost its effectiveness, as they have a synergistic effect on each other, making them more potent when they are used together.

Glutathione works very well with R-Alpha Lipoic and Vitamin C as both help recycle the Glutathione and have a synergetic effect.

The majority of our supplements work best when taken in the morning on an empty stomach. However, we do recommend to check on the back of each individual product packaging or the relevant product page for specific instructions on when to take each supplement. Spermidine, MenoCare+, Tocotrienols, Releafand Spore Probioticspecifically should be taken with a meal or shortly after as this will both maximize their effectiveness and reduce the possibility of gastrointestinal (GI) disturbances.

We always advise to check on the packaging for specific instructions on how and when to take each supplement, or its relevant product page on our website.

For capsule products we recommend to take with a glass of water. If you experience any issues swallowing the capsules whole you can open them up and add to a cold liquid.

We always advise to check on the packaging for specific instructions on how and when to take each supplement, or its relevant product page on our website.

For capsule products we recommend to take with a glass of water. If you experience any issues swallowing the capsules whole you can open them up and add to a cold liquid.

For our NMN and NR powder and capsules specifically we recommend to take in the morning on an empty stomach, place under your tongue, and let it dissolve. Then wait at least 30 minutes before having a meal.

If you find the taste of the powder too strong, you can mix in a glass of cold water, or add to a yogurt bowl, a smoothie or any other cold drink. We do not recommend to add the powder directly to the blender as it can affect the integrity of the product, so please add to a smoothie or juice only once blended, and gently mix with a spoon. Please do not add the powder to any hot drinks or hot foods.

Product Information

Both supplements are made with the same ingredient. However, there is a difference in how they are administered. NMN is most effective when taken as powder under the tongue as it is absorbed by the capillaries in your mouth and the GI Tract is bypassed. Many of our customers use the capsule version and they are happy with the results they are receiving.

Both versions of our product work fine as per the feedback from our customers. There are minor differences between the capsule and liquid version. The liquid version has a higher dosage per serving however one bottle finishes around 5 days earlier (25 days) compared to the capsule version. Whereas the capsule version has a lower dosage per serving but one bottle lasts slightly longer (30 days). We believe that the choice of liquid or capsule version is a personal preference according to the preference of our customers, as there are no major differences between these products.

Both NR and NMN work to boost NAD+ but they work through different pathways in the cells, as they are one enzymatic step away as the molecules are closely linked. It is felt that NMN might work better in cells and NR better in some other organs.

We generally recommend NMN powder be taken sublingually as this is when we see the best results. Typically, two scoops a day under the tongue will do it, just hold it and let it dissolve. However, if this taste is not for you then the NR Delayed Release capsules would be stronger than mixing the NMN in water.

On occasion, when customers have not experienced the desired results with NMN, they have reverted to NR and have seen positive results.

All of our Liposomal products are created using a Liposomal technology. Liposomal supplements use a unique delivery method that allows a higher number of the nutrients in a product to be absorbed by the body. Using a liposomal technology for supplements allows for better absorption, 8x times greater bioavailability, and is more biocompatible to the human body.

You can read up on it further here.

None of our capsule, softgel, or powder products would break a fast. Only our Liposomal bottles products could potentially break a fast, as they contain a small amount of calories.

Taste and Preferences

Some people may find the taste of R-Alpha Lipoic Acid too strong. We recommend mixing it with cold water or juice to soften the taste. Liquid liposomal products should never be mixed in hot liquids or blended, as this will disintegrate the liposomes.

Product Composition

All of our products are vegan with the exceptions of Superba Krill Oil, Tocotrienols, Phytoceramides (Lipowheat), Mitochondrial CoQ10 and Vitamin D3 + K2.

Yes, our full range of products is gluten-free.

Shipping and Duties

We ship to various destinations worldwide, but there are some exceptions such as South America, Africa, The Caribbean, Tenerife (we do ship to the rest of Spain), China and Hong Kong.

Please note that we are not responsible for covering any applicable import taxes or duties for orders outside the UK and EU. Youth & Earth will not take responsibility to pay custom taxes. 

Subscription Information

Yes, you can set up a monthly subscription for any of our products.

Once you go on the specific product page of the product you wish to set up a subscription for, make sure to select the 'Subscribe and Save 20%' option, instead of the 'One-time Purchase' option. Then, add the product to your cart. Once you have done this for all the individual products you wish to have a subscription for, you can go to your basket and proceed with your order. Please note, if you wish for any subscriptions to arrive at a different time of the month, you will have to set up separate subscriptions by placing separate orders. Alternatively, once you set up a subscription for a few products under the same order, all of these products will then arrive together monthly.

Yes, you can edit, pause, or cancel your subscription at any time. If you find yourself having too much product, you can also skip an order, which allows you to still keep your subscription. You can also change the date your next subscription order gets created. Additionally, you can take products out of your subscription. You can do all of this by logging into your online account on our website. Alternatively, we are always here to help with any changes to your subscription, please contact us on

By setting up a subscription, it saves you the hassle from having to keep re-ordering your supplements manually each time. Having a subscription also means you will also get a 20% permanent discount - so you can conveniently get a monthly delivery of your favourite products and at a discounted price!


No, you can only use one discount code per order.