The quickest way to to find answers to the most asked questions.

About NAD+

  • What is NAD+?

    NAD+, or nicotinamide adenine dinucleotide, is a coenzyme found in all living cells and plays a critical role in supporting many biological processes within your body.

  • What are the benefits of NAD+?

    NAD+ benefits include protecting cells from stress and helping your cells repair damaged DNA.

  • How does NAD+ work?

    NAD+ works as a shuttle bus, transferring electrons from one molecule to another within cells to carry out all sorts of reactions and processes. It also plays a critical role in cellular functions that keep you alive.

  • Why is NAD+ important?

    It serves two main functions: to turn nutrients into energy, and to be an important player in the metabolic process, serving as a friendly little helper in regulating other cellular functions.

  • What does NAD+ do for the skin?

    NAD+ synthesised in the body boosts mitochondrial function and repairs damaged cells, including the cells that form the elasticity of the skin. This process reduces wrinkles, age spots and fine lines caused by ageing.

  • Does NAD+ improve the skin?

    Topical NAD+ has been shown to reduce fine lines and wrinkles, repair and protect from sun damage and support new collagen formation.

  • Can NAD+ be absorbed through the skin?

    Our studies show that, thanks to Intuisse’s patented transport technology, Active NAD+ effectively penetrates the skin and is quickly absorbed by the cells.

  • How do you maintain NAD+?

    Healthy lifestyle and diet both benefit maintaining NAD+, however, levels are constantly declining with age.

  • Are there any side effects to NAD+?

    Negative side-effects have not been shown in the studies. If you are pregnant or nursing, please consult your physician.


  • What does the expiration date on my product mean?

    Your product is at optimum efficacy at room temperature for 2 months. When you receive your order, we recommend you place one refill in the applicator and refrigerate the second refill. Refrigerated products can be stored in the refrigerator for one year.

  • How do I modify my order?

    Due to the high volume of orders and limited quantities available, we are unable to make changes to any orders once the order is placed. If you have a question about your order, please contact us immediately at customerservice@intuisse.com.

  • Can I cancel my order?

    You may cancel an order for a full refund if your order has not shipped. All in-stock orders do ship out within 1-2 business days. To cancel your order, please email us at customerservice@intuisse.com. If your order has already shipped, we are unable to cancel your order.

  • What if the product is out of stock?

    If the product ordered is not available, you will be notified by email and you will have the option either to wait until the item is available or to cancel your order.

  • I only received part of my order

    Either one of your orders is temporarily out of stock and it will be shipped separately, or something has gone wrong. Please email us with your order number so we can check for you and ensure you receive what you have ordered at customerservice@intuisse.com.

  • What payment methods do you accept?

    We accept all major debit and credit cards, as well as PayPal.

  • Can I combine coupon codes and discounts?

    Please note that some coupon codes and discounts cannot be combined on orders. Once an order is placed, we are unable to adjust or add discounts to an existing order.

  • How do I contact customer service?

    If you have any questions about our products or are inquiring about your order status, please email us at customerservice@intuisse.com and we will address your question as soon as possible.


  • How much does shipping cost?

    Costs vary depending on the size of your order and delivery address. Check out our shipping pricing here.

  • How long does shipping take?

    All domestic orders are shipped via Priority Mail (1-2 business days once processed). Once your order is ready for delivery, you will receive an email with your tracking information so you can track your order to its destination. If your order status says 'pending', no further action is needed.

  • What should I do if I entered the wrong shipping address?

    If you accidentally entered the wrong shipping address, please notify our team immediately via email at customerservice@intuisse.com. We will do our best to accommodate you.

  • Can I expedite/do you offer overnight shipping?

    No, but depending on the delivery address, your order, once shipped, will arrive within 1-2 days to mainland UK and 3-5 days to other parts of United Kingdom. Check out our shipping timescales here.

  • Where do you ship?

    We currently ship only to the UK.

  • What if my package doesn’t arrive?

    Please contact us by sending an email to customerservice@intuisse.com with your order number.

  • How do I track my order?

    You will receive an email confirmation once your order is processed with a tracking number and link.


  • Can I return or exchange?

    Should you wish to return an item for any reason, please notify us within 14 days of receipt of your order, identifying any part that is unsatisfactory. We cannot process returns of unwanted goods due to the perishable nature of our product. To arrange a one-time refund or exchange, please contact us at customerservice@intuisse.com and inform our customer-service team of your order number and the reason for the request. Our customer-service team will process either a credit or a refund.

  • Damages

    We take great care in packaging your order, however, if the product is damaged upon delivery, please contact customer service immediately at customerservice@intuisse.com and we will arrange a replacement for you. You may be asked to send photographic evidence of the damaged goods. Please dispose of unwanted items in a responsible manner.

For questions, email us at replenish@intuisse.com