Same-day dispatch before 1pm · Free UK delivery over £100

Limited-time welcome offer:
00
days
00
hours
00
minutes
00
sec.

Doctor’s Best Sustained – Release Niacin, 500mg – 120 tablets

SKU:

P30704

Doctor’s Best Sustained – Release Niacin, 500mg – 120 tablets is a high-strength vitamin B3 supplement in a sustained-release tablet designed to release niacin gradually. Niacin contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue.

£21.99
UK delivery £4.99Free on orders over £100
Secure paymentsCard, Apple Pay & Google Pay
Genuine productsFactory-sealed stock from trusted brands
30-day returnsSee our Delivery & Returns page
Questions? +44 7955 204 290Mon – Fri, 9:30am – 4:30pm

Out of stock

    Add to wishlist
    Compare
    SKU: P30704 Category: Brand:

    Description

    Doctor’s Best Sustained-Release Niacin 500mg – High-Strength Vitamin B3

    Doctor’s Best Sustained Release Niacin provides 500mg of vitamin B3 as niacin (nicotinic acid) in each tablet. Rather than releasing everything at once, the tablet is designed to release niacin slowly over several hours, which many people find makes the familiar warm skin flush of niacin less intense. It is a high-strength, specialist B3 product from a brand known for straightforward, science-based formulas.

    Key Benefits of Doctor’s Best Sustained Release Niacin

    • Energy metabolism – niacin contributes to normal energy-yielding metabolism.
    • Reduced tiredness – niacin contributes to the reduction of tiredness and fatigue.
    • Sustained-release tablet – formulated to release niacin gradually rather than in one burst.
    • 500mg per tablet – a high-strength amount for people who specifically want a concentrated vitamin B3.
    • 120 tablets – a generous bottle for regular use.

    Who Is It For?

    This is a specialist product for adults who have a clear reason to take high-strength niacin, ideally after speaking with a GP or pharmacist. It is not intended for casual daily top-ups; a standard B-complex is usually a better choice for general wellbeing.

    Why Choose Doctor’s Best?

    Doctor’s Best has spent decades producing science-based supplements in the United States, with a range covering single vitamins, minerals and specialist nutrients.

    FAQs

    Is 500mg of niacin a high dose?
    Yes. It is many times the daily reference intake for niacin, so it is not suitable for everyone. Speak to your GP or pharmacist before use, particularly if you take other medication or have any liver concerns.

    Will I still get a niacin flush?
    Some people still notice mild warmth or redness. The sustained-release tablet is designed to make it less pronounced, but responses vary.

    Why Shop With Lotty8 Supps?

    • Genuine, factory-sealed products – sourced through established UK sports-nutrition wholesale distribution. Never repackaged, never grey-market.
    • Fast dispatch – orders placed before 1pm on a working day are dispatched the same day with Royal Mail Tracked 48.
    • Low-cost UK delivery – £3.99 per order, free on orders over £100. See our Delivery & Returns page.
    • Hassle-free returns – full details on our Delivery & Returns page.
    • Top brands in one place – Applied Nutrition, BioTechUSA, SciTec, NOW Foods, Doctor’s Best and many more.
    • Real people, real help – questions about a product or your order? Contact the Lotty8 team.

    Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily intake. Keep out of reach of young children. Formulations and packaging can change – always read the label on the product you receive before use.

    Take the serving shown on the label with food, swallowing the tablet whole with water – do not crush, break or chew sustained-release tablets. Avoid taking it with hot drinks or alcohol, which can make flushing more noticeable.

    Seek advice from a GP or pharmacist before starting high-strength niacin, and do not combine it with other niacin supplements.

    Always follow the directions on the product label. Do not exceed the recommended daily intake.

    • Brand: Doctor's Best
    • Product: Sustained - Release Niacin
    • SKU: P30704
    • Category: Single Vitamins
    • Strength: 500mg
    • Pack size: 120 tablets
    • Product format: Tablets
    • EAN: 0753950002425
    • Listed shipping weight: 0.1 kg
    • Country of origin: United States

    Additional information

    Weight 0.1 kg
    Country of Origin

    United States

    Expiry Date

    2027-12-31

    Reviews

    There are no reviews yet.

    Be the first to review “Doctor’s Best Sustained – Release Niacin, 500mg – 120 tablets”

    Your email address will not be published. Required fields are marked *

    Frequently asked questions

    Can I take it with my other supplements?

    Check the labels so you do not go over the recommended daily amount of any vitamin or mineral. If you take medication or have a medical condition, ask your pharmacist or doctor first.

    Are your products genuine?

    Yes. Every product comes through established UK wholesale distribution and is sold factory-sealed – never repackaged and never grey-market.

    How much is delivery and how quickly will it arrive?

    UK delivery is £4.99 per order, and free on orders over £100. Orders placed before 1pm, Monday to Friday, are dispatched the same working day with Royal Mail Tracked 48, which aims to deliver within 2–3 working days. You will get an email with your tracking number as soon as it is on its way. Full details are on our Delivery & Returns page.

    Can I return it?

    Yes. You have 30 days from delivery to return sealed, unopened items. For health and hygiene reasons supplements and food cannot be returned once the seal is broken, unless they are faulty. If something arrives damaged or is not what you ordered, contact us and we will put it right. See Delivery & Returns.

    How can I pay?

    Card, Apple Pay and Google Pay. Payments are processed securely by our payment providers, and we never see or store your full card details.

    Where can I find the ingredients, nutrition and allergy information?

    In the tabs above (Nutrition, Ingredients and How to Use) where they are available for this product. Manufacturers sometimes update formulas and packaging, so always read the label on the pack you receive, especially if you have allergies.

    Is it suitable for me?

    Food supplements are not a substitute for a varied, balanced diet and healthy lifestyle, and should not be taken above the recommended daily amount. Keep out of the reach of children. If you are pregnant, breastfeeding, taking medication or have a medical condition, speak to your doctor before use.

    Who can I ask about this product?

    Our UK team is here Mon – Fri, 9:30am – 4:30pm. Call +44 7955 204 290, email info@lotty8supps.com or use our contact page.

    Recently viewed items

    Add to wishlist
    Compare
    Applied Nutrition Endurance Elite Performance Energy Gel, Apple Burst - 20 x 60 ml.
    £26.49
    Select options This product has multiple variants. The options may be chosen on the product page
    In Stock
    Add to wishlist
    Compare
    Allnutrition Fitking Protein Cookies, Choco Peanut - 6 cookies
    £5.49
    Select options This product has multiple variants. The options may be chosen on the product page
    In Stock
    Shopping Cart

    No products in the cart.

    Same-day dispatch before 1pm · Free UK delivery over £100

    Type the product you want to search for and press enter.