is this the flushing kind ?

Yes. You need start slow, not a full scoop, especially if you have been taking lots of other B vitamins.

Which form is this powder, nicotinic acid or niacinamide?

As shown on the label, this form is Niacin

Where is this produce manufactured?

It states it’s distributed in Utah…I see nowhere on the label where it states it’s manufactured in the US

what is the source of this product?

I'm not sure what source is but pls be very careful. I had half a scoop and had a severe allergic reaction . It's called a niacin flush. It was very scary. Red burning hot skin all over my body.

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Nutricost Niacin Vitamin B3 Powder 250 Grams - 1G Per Serving - Vitamin B3 (Niacin) Powder - May Cause Flush

Product ID: 16981661

Details

Brand
Nutricost
Diet Type
Gluten Free
Flavor
Unflavored
Item Form
Powder
Primary Supplement Type
Niacin

🔥1g per serving with potent Niacin flush

🧪3rd party tested, GMP & FDA compliant

⚖️250g pure Niacin powder

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$35.64

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Description

🔥 Elevate your health game with the flush that means business!

FLUSH FACTOR - 1 gram per serving delivers the signature Niacin flush—your heart’s new best friend
PURE POWER DOSE - 250 grams of unadulterated Vitamin B3 for maximum wellness impact
CLEAN CONSCIOUS - Non-GMO and gluten-free, perfect for mindful health enthusiasts
VERSATILE WELLNESS BOOST - Ideal for energy support and lipid profile management, trusted by professionals
CLINICALLY TRUSTED QUALITY - Manufactured in FDA-registered, GMP-compliant facilities with rigorous 3rd party testing

Nutricost Niacin Vitamin B3 Powder offers a potent 250-gram supply of pure Vitamin B3, delivering 1 gram per serving to support heart health and energy metabolism. Produced in FDA-registered, GMP-compliant facilities and verified by third-party testing, this non-GMO, gluten-free powder is designed for professionals seeking a clean, effective supplement. Expect the characteristic Niacin flush, a sign of its active potency and cardiovascular benefits.

Specifications

ASIN	B010RBSLRU
ASIN	B010RBSLRU
Age Range Description	Kid
Allergen Information	Gluten Free
Best Sellers Rank	#47,720 in Health & Household ( See Top 100 in Health & Household ) #76 in Vitamin B3 (Niacin) Supplements
Brand Name	Nutricost
Customer Reviews	4.4 4.4 out of 5 stars (1,234)
Date First Available	July 1, 2015
Diet Type	Gluten Free
Dosage Form	Powder
Flavor	Unflavored
Global Trade Identification Number	00810139571605
Is Discontinued By Manufacturer	No
Item Dimensions	3.54 x 3.54 x 4.33 inches
Item Form	Powder
Item Weight	0.55 Pounds
Manufacturer	Nutricost
Manufacturer	Nutricost
Manufacturer Part Number	UM-VW52-WTV4
Number of Items	1
Primary Supplement Type	Niacin
Product Benefits	Wellness
Product Dimensions	3.54 x 3.54 x 4.33 inches; 8.82 ounces
Special Ingredients	Niacin
Specific Uses For Product	Energy
Supplement Formulation	Individual Supplement
UPC	810139571605
Unit Count	8.8185 Ounce

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