20% off £30

Code:SUN
Vitamins & SupplementsVitamins & Supplements Shop AllHair, Skin & NailsCollagen & SilicaMuscle Support & Joint PainDigestive HealthMagnesiumFunctional MushroomsVitaminsShop all VitaminsMultivitaminsVitamin AVitamin BVitamin CVitamin DVitamin EVitamin KVitamin DrinksMineralsShop all MineralsMagnesiumIronZincCalciumSeleniumChromiumSupplementsShop all SupplementsFibre SupplementsAcidophilus & Friendly BacteriaPeppermint OilGrapeseed ExtractLecithinCollagen & SilicaOmega & Fish OilsPlant Sourced SupplementsSuperfood SupplementsArnicaApple CiderRaspberry KetonesAloe VeraChondroitin & MSMCo Enzyme Q10Evening Primrose OilGarlicGinkgo BilobaGlucosamineGlucomannanSeaweed, Kelps and Aquaceuticals5 HTPDigestive EnzymesSaw palmettoCharcoalConditionShop all ConditionCholesterolAllergy & Hay Fever CareAnxiety SupportBone & Muscle HealthMuscle Support & Joint PainBrain & Memory SupportWomen's HealthMen's HealthChildren's HealthCold & Immune SupportFatigueDigestive HealthHair, Skin & NailsHeart & CirculationLiver CareMood SupportSexual HealthSleep & RelaxationStress ReliefVisionWomen's HealthShop all Women's HealthPerimenopauseMenopauseMenstrual SupportUrinary Tract HealthPregnancy & ConceptionMen's HealthShop all Men's HealthProstate HealthChildren's HealthCBD Vitamins & SupplementsShop all CBD Vitamins & SupplementsCBD OilCBD CapsulesCBD SprayCBD GummiesHerbal & Licensed RemediesShop all Herbal & Licensed RemediesRescue RemedyAshwagandhaMilk ThistleGinseng & GuaranaHomeopathic & Flower RemediesShop all Homeopathic & Flower RemediesRescue RemedyTissue SaltsFlower RemediesHomeopathic RemediesAt-Home TestsVegan Vitamins & SupplementsHolland & BarrettVitabioticsSolgarNew NordicBioglanNovominsWeledaGrass & Co.BetterYouWild Nutrition3 for 2 Mix & MatchBuy one get one 1/2 priceBuy 1 Get 1 FreeBack in demandOutletMarketplace OffersSave up to 1/2 PriceDairy FreeGluten FreeSesame Seed FreeSugar FreeSoya FreeCelery FreeCereal FreeCrustaceans FreeEgg FreeFish FreeLion's Mane MushroomApple Cider VinegarReishi MushroomCollagenChaga MushroomArnicaMaitake MushroomShiitake MushroomAstragalusCastor OilNew inFood & DrinkFood & Drink Shop AllVegan Food & DrinkShop all Vegan Food & DrinkMeat-Free AlternativesDairy Free DrinksEgg SubstitutesVegan ProteinVegan Protein BarsDried Fruit, Nuts & SeedsShop all Dried Fruit, Nuts & SeedsDried FruitNutsSeedsMixesChocolate CoatedManuka HoneyTeas, Coffee & Hot BeveragesShop all Teas, Coffee & Hot BeveragesCoffee & Coffee SubstitutesMushroom DrinksHot ChocolateTeasSuperfood TeasMatcha & Green TeaHerbal TeaPeppermint TeaSleep & RelaxationSlimming TeaWomen's Health TeasDrinks & JuicesShop all Drinks & JuicesMultipack DrinksJuices & Health ShotsNatural Energy DrinksCoconut WaterKombuchaCBD DrinksSoft DrinksWaterAlcohol Free DrinksProtein ShakesSuperfoodsShop all SuperfoodsSuperfood BlendsSupergreensMoringa PowderSpirulinaMaca PowderFlaxseedBaobabChia SeedsGoji BerriesGut HealthHealthier SnackingShop all Healthier SnackingSweet SnacksSavoury SnacksLow Calorie SnacksChocolateCrisps & ChipsCrackers & CrispbreadsBiscuits & CookiesSnack BarsFlapjacksLiquoricePopcornSweets & MintsChocolate Coated SnacksFood CupboardShop all Food CupboardApple Cider VinegarCondiments & SaucesMeat-Free AlternativesSoup & Ready MealsRice, Pasta, Pulses & GrainsGravy, Broths & StockHoney, Jams & SpreadsShop all Honey, Jams & SpreadsManuka HoneyHoneyNut ButtersJams & ChutneysSyrupsSpreadsPateBreakfast CerealsShop all Breakfast CerealsCereals, Bran & FlakesGranolaMuesliOats & PorridgeBreakfast BarsCookingShop all CookingCooking IngredientsApple Cider VinegarCondiments & SaucesMeat-Free AlternativesSoup & Ready MealsRice, Pasta, Pulses & GrainsTinned FoodsHerbs, Spices & SeasoningGravy, Broths & StockHome BakingShop all Home BakingBaking IngredientsBaking MixesBreadFlourSweeteners & Sugar AlternativesEgg SubstitutesDairy Free DrinksShop all Dairy Free DrinksOat, Rice & Hemp DrinksSoya DrinksNut DrinksCoconut DrinksDesserts & CreamsNutritionally Complete FoodCoconutHolland & BarrettNaturyaGrenadeTwiningsNakdHeath & HeatherManuka DoctorPerfectTedPukkaEgmont HoneyBuy one get one 1/2 priceSave up to 1/2 Price3 for 2 Mix & MatchBuy 1 Get 1 FreeIntroductory Offer2 For £5Back in demandOutletGluten FreeDairy FreeWheat FreeSugar FreeEgg FreeMilk FreeNut FreeSesame Seed FreeSoya FreeCelery FreeLion's Mane MushroomApple Cider VinegarReishi MushroomChaga MushroomTremella MushroomTrumpet MushroomNew inSports NutritionSports Nutrition Shop AllProteinShop all ProteinWhey ProteinClear ProteinMass GainersVegan ProteinDiet ProteinCaseinSports SupplementsShop all Sports SupplementsTestosteroneElectrolytesEnergy GelsSports CollagenCreatineShop all CreatineCreatine PowderCreatine CapsulesBars, Drinks & SnacksShop all Bars, Drinks & SnacksEnergy BarsProtein BarsProtein ShakesProtein SnacksNutritionally Complete FoodMeal Replacement ShakesPre Workout & EnergyShop all Pre Workout & EnergyPre WorkoutCaffeine Free Pre WorkoutAmino Energy PowdersIntra WorkoutPost WorkoutKetoAmino AcidsShop all Amino AcidsAmino Energy PowdersBCAAL-LysineGlutamineCarnitineArginineVegan Sports NutritionShop all Vegan Sports NutritionVegan ProteinVegan Protein BarsVegan Pre Workout & EnergyVegan Amino AcidsVegan CreatineSports AccessoriesShop all Sports AccessoriesBottles & ShakersFitness EquipmentApplied NutritionOptimum NutritionPrecision EngineeredUSNMyproteinGrenadeHuelTriActivePhDSiSSave up to 1/2 PriceBuy one get one 1/2 priceOutletIntroductory Offer3 for 2 Mix & MatchBuy 1 Get 1 FreeMarketplace OffersGluten FreeDairy FreeSugar FreePalm Oil FreeSoya FreeCelery FreeCereal FreeCrustaceans FreeEgg FreeFish FreeApple Cider VinegarNew inBeautyNatural Beauty Shop AllSkincareShop all SkincarePremium SkincareFace CareBody CareSun CareTanning & BronzingEye CareLip CareFoot CareHand & Nail CareSkin AilmentsSkin OilsCBD BeautyFace CareShop all Face CareCleanser & TonerFace MoisturiserFace Oil & SerumFace WashFace Exfoliators & ScrubsFace MasksHair CareShop all Hair CareShampoo & ConditionerHair ColouringHair MasksHair Oil & SerumHair Spray, Gel & MousseHair AccessoriesSun CareShop all Sun CareSun Lotion SPFMineral Sun CareFace SPFAfter SunWashing & BathingShop all Washing & BathingShampoo & ConditionerBathing AccessoriesFeminine CareShower Gel & Body WashDeodorantDentalHand WashSoapBath Soak & OilBody ScrubBath Bombs & SaltsIncontinence SupportAromatherapy & HomeShop all Aromatherapy & HomePure Essential OilsBlended Essential OilsBase & Carrier OilsHolisticMother & BabyShop all Mother & BabyBaby Skincare & ToiletriesElectrical WellnessDr OrganicFaith in NatureWeledaNaturtintTisserandQ+AMiaromaSukinAveenoTrilogySave up to 1/2 PriceBuy one get one 1/2 price2 For £18Back in demandBuy 1 Get 1 Free3 for 2 Mix & MatchOutletAlcohol FreeFluoride freeParfum FreeGluten FreePalm Oil FreeCelery FreeCereal FreeCrustaceans FreeEgg FreeFish FreeVitamin CTea TreeRosehipRosemaryVitamin EHyaluronic AcidAloe VeraLavenderSeaweedSalicylic AcidNew inWeight ManagementWeight Management Shop AllFat Burners, Binders & Appetite SuppressantsShop all Fat Burners, Binders & Appetite SuppressantsFat BurnersFat BindersAppetite SuppressantsSlimming TabletsWeight Management Shakes Shop all Weight Management Shakes Meal Replacement ShakesDiet ProteinDiet Food & DrinkShop all Diet Food & DrinkSlimming TeasHealthier CookingLow Calorie SnacksFruit, Nuts & SeedsJuices & Health ShotsApple Cider VinegarExercise SupportShop all Exercise SupportFitness EquipmentMeal Replacement ShakesDiet ProteinProtein BarsHolland & BarrettUSNTREKEat WaterFrejaIdeal HealthNudie SnacksBraggGrenadeNatures AidSave up to 1/2 PriceBuy one get one 1/2 price3 for 2 Mix & MatchBuy 1 Get 1 FreeBack in demand2 For £10Short Dated June 2025Gluten FreeSugar FreeWheat FreeDairy FreeCelery FreeCrustaceans FreeEgg FreeFish FreeKiwi FreeLupin FreeApple Cider VinegarLion's Mane MushroomReishi MushroomSea MossNew inNew InTrendingThe best of Holland & BarrettMedicines and HealthcareShop all Medicines and HealthcareHayfever & Allergy RemediesPain ReliefCough, Colds & Sore ThroatAntacids & GastrointestinalInfant & BabiesFemale HealthHaemorrhoids & Piles TreatmentsEar Care & Eye HealthFoot Care & Health Skin & ScalpMouth & Oral CareHair & ScalpTravelCareNurofenE45CalpolOilatumStrepsilsTiger BalmAnadinAnusolBeechamsBuy one get one 1/2 priceSave up to 1/2 PriceNew inVeganBuy one get one 1/2 price3 for 2 Mix & MatchSave up to 1/2 PriceBuy 1 Get 1 FreeBack in demand2 For £18Introductory OfferOutlet2 For £5Marketplace OffersShop all Health & WellnessJoints, Bones, & MusclesExercise & PerformanceEnergyGut HealthBrain HealthHeart HealthHair & Skin HealthWomen's HealthImmunitySleep & RelaxationChildren's HealthMen's HealthEmotional WellbeingEye HealthHolland & BarrettDr OrganicVitabioticsFaith in NatureWeledaApplied NutritionOptimum NutritionNaturtintPrecision EngineeredQ+ABuy one get one 1/2 price3 for 2 Mix & MatchSave up to 1/2 PriceBuy 1 Get 1 FreeBack in demand2 For £18OutletIntroductory OfferGluten FreeDairy FreeAlcohol FreeSugar FreeParfum FreeWheat FreeEgg FreeSesame Seed FreeSoya FreeCelery FreeVitamin CLion's Mane MushroomApple Cider VinegarTea TreeRosehipVitamin EHyaluronic AcidReishi MushroomAloe VeraLavenderNew inArticlesAll articlesHealthFood & nutritionGut healthImmunityJoints, bones & musclesWomen's healthWellnessHair & skinMental wellbeingSeasonalSleep & relaxationSports nutritionRecipesAll recipesGluten freeLow sugarVeganDairy freePodcast
Skip to content

Vitamin B3 Niacin

126 items
Image 1 for Vitamin B3 + Niacin 100mg 120 TabletsImage 2 for Vitamin B3 + Niacin 100mg 120 TabletsImage 3 for Vitamin B3 + Niacin 100mg 120 TabletsImage 4 for Vitamin B3 + Niacin 100mg 120 Tablets
Holland & Barrett
Vitamin B3 + Niacin 100mg 120 Tablets
(60)
3 for 2 Mix & Match
£4.25
£0.04/1 Tablet
Image 1 for Wellbaby Multi-Vitamin Liquid 6 Months to 4 Years 150ml
Vitabiotics
Wellbaby Multi-Vitamin Liquid 6 Months to 4 Years 150ml
(103)
Buy 1 Get 1 Half Price
£5.89
£3.93/100 ml
Image 1 for Wellkid Multi-Vitamin Chewables 30 TabletsImage 2 for Wellkid Multi-Vitamin Chewables 30 Tablets
Vitabiotics
Wellkid Multi-Vitamin Chewables 30 Tablets
(105)
Buy 1 Get 1 Half Price
£6.99
£0.23/1 Tablet
Image 1 for Hair Vitamins for Women 35+ 60 Capsules 1 Month Supply
Hairburst
Hair Vitamins for Women 35+ 60 Capsules 1 Month Supply
(85)
Buy 1 Get 1 Half Price
£38.49
£0.64/1 Capsules
Image 1 for Wellkid Peppa Pig Multi-Vitamin Strawberry Flavour 30 JelliesImage 2 for Wellkid Peppa Pig Multi-Vitamin Strawberry Flavour 30 JelliesImage 3 for Wellkid Peppa Pig Multi-Vitamin Strawberry Flavour 30 Jellies
Vitabiotics
Wellkid Peppa Pig Multi-Vitamin Strawberry Flavour 30 Jellies
(76)
Buy 1 Get 1 Half Price
£8.49
£0.28/1 softgel
Image 1 for High Strength Vitamin B Complex 60ml LiquidImage 2 for High Strength Vitamin B Complex 60ml LiquidImage 3 for High Strength Vitamin B Complex 60ml Liquid
Holland & Barrett
High Strength Vitamin B Complex 60ml Liquid
(25)
3 for 2 Mix & Match
£10.49
£17.48/100 ml
Image 1 for Alive! Women's 50+ Multi-Vitamin 30 TabletsImage 2 for Alive! Women's 50+ Multi-Vitamin 30 Tablets
Nature's Way
Alive! Women's 50+ Multi-Vitamin 30 Tablets
(60)
Buy 1 Get 1 Half Price
£9.49
£0.32/1 Tablet
Image 1 for Alive! Children's Chewable Multi-Vitamin 30 TabletsImage 2 for Alive! Children's Chewable Multi-Vitamin 30 Tablets
Nature's Way
Alive! Children's Chewable Multi-Vitamin 30 Tablets
(41)
Buy 1 Get 1 Half Price
£8.99
£0.30/1 Chewable
Image 1 for Alive! B Complex Multi Vitamins 60 Soft Jells
Nature's Way
Alive! B Complex Multi Vitamins 60 Soft Jells
(40)
Buy 1 Get 1 Half Price
£15.99
£0.27/1 softgel
Image 1 for Alive! Womens Energy 60 GummiesImage 2 for Alive! Womens Energy 60 GummiesImage 3 for Alive! Womens Energy 60 Gummies
Nature's Way
Alive! Womens Energy 60 Gummies
(328)
Buy 1 Get 1 Half Price
£15.99
£0.27/1 Chewable
Image 1 for Neuromind Plus 56 Tablets
Vitabiotics
Neuromind Plus 56 Tablets
(113)
3 for 2 Mix & Match
£21.50
£0.38/1 Tablet
Image 1 for PROCEIVE® Max Women Advanced Fertility Supplement 30 SachetsImage 2 for PROCEIVE® Max Women Advanced Fertility Supplement 30 SachetsImage 3 for PROCEIVE® Max Women Advanced Fertility Supplement 30 SachetsImage 4 for PROCEIVE® Max Women Advanced Fertility Supplement 30 Sachets
Proceive
PROCEIVE® Max Women Advanced Fertility Supplement 30 Sachets
(82)
£51.25
£1.71/1 Sachet
Image 1 for Wellwoman 50+ 30 Tablets
Vitabiotics
Wellwoman 50+ 30 Tablets
(164)
Buy 1 Get 1 Half Price
£10.49
£0.35/1 Tablet
Image 1 for Wellman Max 84 Capsules
Vitabiotics
Wellman Max 84 Capsules
(96)
3 for 2 Mix & Match
£20.99
£0.25/1 Capsules
Image 1 for Liverel 60 Tablets
Vitabiotics
Liverel 60 Tablets
(74)
Buy 1 Get 1 Half Price
£17.49
£0.29/1 Tablet
Image 1 for Perfectil 30 Tablets
Vitabiotics
Perfectil 30 Tablets
(157)
Buy 1 Get 1 Half Price
£6.49
£0.22/1 Tablet
Image 1 for Pregnacare Breastfeeding 84 TabletsImage 2 for Pregnacare Breastfeeding 84 Tablets
Vitabiotics
Pregnacare Breastfeeding 84 Tablets
(57)
Buy 1 Get 1 Half Price
£16.49
£0.20/1 Tablet
Image 1 for Wellman 50+ 30 Tablets
Vitabiotics
Wellman 50+ 30 Tablets
(154)
Buy 1 Get 1 Half Price
£10.49
£0.35/1 Tablet
Image 1 for PROCEIVE® Women & Men Dual Pack Advanced Fertility Supplement 120 Capsules
Proceive
PROCEIVE® Women & Men Dual Pack Advanced Fertility Supplement 120 Capsules
(34)
£44.95
£0.37/1 Capsules
Image 1 for Menopause Max Hydrolysed Marine Collagen 10,000mgs 28 Days SupplyImage 2 for Menopause Max Hydrolysed Marine Collagen 10,000mgs 28 Days SupplyImage 3 for Menopause Max Hydrolysed Marine Collagen 10,000mgs 28 Days SupplyImage 4 for Menopause Max Hydrolysed Marine Collagen 10,000mgs 28 Days SupplyImage 5 for Menopause Max Hydrolysed Marine Collagen 10,000mgs 28 Days Supply
Revive Collagen
Menopause Max Hydrolysed Marine Collagen 10,000mgs 28 Days Supply
(27)
25% Off
£61.49
RRP: £81.99
£2.20/1 Sachet
1 - 20 of 126 products
Sign up for exclusive offers

Plus, get expert advice to support your health & wellness straight to your inbox when you sign up to Holland & Barrett emails.