BioMirco

Niacin B3 Complex

With thiamine B1 and alpha-lipoic acid

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  • High-strength niacin (vitamin B3) with thiamine (B1) and alpha-lipoic acid. Niacin contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue. Made in the UK.

Description

Niacin (vitamin B3) is one of the most under-talked-about vitamins in everyday wellness. Our Niacin B3 Complex pairs nicotinic acid (the flush-producing form) with thiamine and alpha-lipoic acid in one daily capsule.

For energy metabolism, mental clarity, and recovery from tiredness.

What you get

  • 50mg nicotinic acid, the flush-producing form of vitamin B3
  • Thiamine (vitamin B1) for energy metabolism and nervous system function
  • Alpha-lipoic acid, a naturally occurring compound studied for its role in cellular processes
  • 120 vegan capsules, 1 capsule per day, 4-month supply

What the GB Authorised Health Claims say

  • Niacin contributes to normal energy-yielding metabolism.
  • Niacin contributes to the reduction of tiredness and fatigue.
  • Niacin contributes to normal psychological function.
  • Niacin contributes to the normal function of the nervous system.
  • Niacin contributes to the maintenance of normal skin and mucous membranes.
  • Thiamine contributes to normal energy-yielding metabolism, the normal function of the heart, and normal psychological function.

About the niacin flush

At 50mg, nicotinic acid commonly causes a temporary skin flush (warmth, redness, tingling) within 15-30 minutes of taking it. This is a normal, harmless histamine response and usually subsides within an hour. Starting with the capsule alongside food can help reduce its intensity.

What’s NOT in it

  • No artificial colours, flavours, or sweeteners
  • No GMOs, gluten, dairy, soy, or animal products
  • Vegan capsule shell

Also good to know: both Fertility Advance and Fertility Focus contain B-vitamins as part of the preconception package. This standalone complex is for everyday energy support outside the preconception window.

Ingredients

Per daily serving: 1 vegan capsule

NutrientPer Serving%NRV
Vitamin B3 (Niacin / Nicotinic Acid (may cause flush))50mg312%
Vitamin B1 (Thiamine)26.86mg2442%
Alpha-Lipoic Acid (ALA)66mg**
Capsule Shell (Vegetable Cellulose (HPMC))

%NRV = % of EU Nutrient Reference Value. ** = No established NRV.

Delivery & Returns

Free UK shipping on all orders, no minimum spend. Tracked delivery via Royal Mail typically arrives within 2–4 working days from dispatch. Orders placed before midday Monday to Friday usually ship the same day.

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60-day returns on unopened products.

FOUNDER STORY

Bio Mirco

BioMirco was founded by Jay and Natasha Necati, a husband-and-wife team, after more than a decade of infertility, IVF and pregnancy loss. Natasha, a fertility advocate who has spoken about pregnancy loss in national media and Jay set out to build the preconception formula they wished they'd had: active-form nutrients, a serious dose of CoQ10, and nothing they wouldn't take themselves.

Meet Jay & Natasha - Read full story

WHY YOU'LL LOVE IT

What it does for you

50mg Niacin (Nicotinic Acid form) - with the famous niacin flush effect

Plus 26.86mg Vitamin B1 (Thiamine) for normal heart function (GB Authorised)

66mg Alpha-Lipoic Acid - naturally occurring antioxidant compound

120 vegan capsules. 4-month supply.

THE SCIENCE

Why it works

What is Niacin Vitamin B3 Complex?

A 3-ingredient complex pairing nicotinic acid (vitamin B3 in its flush-producing form) with vitamin B1 thiamine and alpha-lipoic acid.

What does it do?

Niacin and B1 both contribute to normal energy metabolism, normal nervous system function, normal psychological function, and the reduction of tiredness and fatigue. B1 specifically contributes to normal heart function (GB Authorised Health Claims).

About the niacin flush

Nicotinic acid produces a temporary warm, tingling sensation in the skin lasting 15 to 30 minutes. Histamine-mediated. Harmless. Take with food, start at half a capsule for the first few days. Avoid taking with grapefruit.

USAGE

How to take it

1 capsule per day, taken with food to reduce the intensity of any flush. Start with half a capsule for the first 3 to 5 days. Avoid taking with grapefruit.

If you take medication for blood pressure, cholesterol, or diabetes, speak to your GP before starting high-dose niacin.

QUESTIONS

Frequently asked

What is the niacin flush?

A harmless warm, tingling, sometimes red feeling in the skin lasting 15 to 30 minutes. Histamine-mediated. Not an allergy.

Why include B1 and ALA?

B1 brings extra GB Authorised claims including normal heart function and energy metabolism. ALA is a naturally occurring compound found in every cell of the body and in foods like spinach.

Why avoid grapefruit?

Grapefruit can interact with niacin metabolism, potentially intensifying side effects.

Can I take it during pregnancy?

Speak to your midwife. High-dose nicotinic acid is usually not recommended during pregnancy.

RESEARCH NOTE

Niacin and B1 both have multiple GB Authorised Health Claims spanning energy, nervous system and heart function. Explore the research.


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  • 5 stars: 2 (67%)
  • 4 stars: 1 (33%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
M
Mac
Does the job but can give you a flush

When I first tried these capsules, I wasn’t entirely prepared for the infamous flush – it’s a bit like someone turning up the central heating inside you for a few minutes.It’s not unpleasant, just... noticeable. The sensation took me by surprise initially, but it soon became more of an odd little feature rather than anything bothersome. The capsules themselves are small and very easy to swallow, which is ideal, as I’ve grown tired of struggling with large, awkward supplements.I started using them to help combat the afternoon energy dip and for better focus, and they seem to deliver. The formula appears to have been thoughtfully put together, including B1 and Alpha Lipoic Acid, though I do wish they'd added B2 as well. I also value the fact that the product is made in the UK, which inspires confidence in the overall quality.For those seeking a high-strength B3 supplement, this seems to be a solid choice.

a
ayyyyyyy
25p per day. Definitely works!

My personal motto is the more nutrients, the better, so I do try to get as many good things into my diet as I can. Unfortunately, foods that are rich in niacin are poultry and red meat, and for vegetarians... avocados and brown rice, basically. I don't make avocado money, and brown rice tastes like a paper bag, so supplements it is!These are super easy to take, in that a serving size is one capsule, and they are miniscule. If you're new to the supplement, about half an hour after, you might get a tingly feeling. That would be the flush, and it is... not that bad. I looked it up online and was expecting way worse, to be honest. If I hadn't been warned beforehand, I'd think I was having a small reaction, but it's pretty interesting! I guess it's like having solid proof that it's working in your system, which is kinda cool. I stopped noticing it and it went away after a little while though, so maybe take them when you're not planning to leave the house for a while, as it can make your face a little red.You get a four month supply for the price, making them 25p per day. They definitely work though, which is really neat to know for sure.

C
Customer Review
B3 supplement with flush effect

120 capsules of B3 Niacin with the flush effect. These capsules give a slight flush effect at first when you start taking them. I have taken B3 for a while now and these seem good value for money. Do be prepared though if you have not taken this type of niacin with the flush effect before you may feel it when you start. For me it is just a hot feeling, not unlike a menopausal flush but not as bad. Everyone is different though.There is some ALA in them 66mg as well as a small dose of B1. I usually take B2 as well as B1, I find taking them together is improtant for me. But only the B3 is in these 26mg.

Niacin B3 Complex

Niacin B3 Complex

Regular price
£19.99
Regular price
Sale price
£19.99