Does one develop a tolerance for this?

The short answer is yes. The thing to do is try to take it only when needed because it's not something you can do a double dose of to get the same effect after you've built a tolerance. For me, it takes about a week of no use to be back at the threshold of noticing an impact that's worthwhile -- but that's only if I'm taking it twice daily 7 days per week. If you can only use 3-5 times a week instead of daily you won't hit that tolerance as quickly. But as I mentioned, yes you can develop a tolerance. There are ways to maximize with other nootropics but it also helps to just cut it out for a week or so to get back below the threshold.

I do not see if the product is nongmo, soy, yeast, gluten free?

Thanks for your question. This product is non-gmo, yeast free and gluten free. The Alpha GPC is derived from soy.

I am confused on the dosing. it says 1/4 teaspoon = 600mg. however, does that mean 300mg alpha-gpc + 300mg silicon dioxide or 600mg alpha-gpc only?

Kenneth is wrong. The label clearly says Serving Size = 600 mg. In each serving, the ingredients are 300 mg Alpha GPC - aka Choline and 300 mg Silicone Dioxide That is right on the label.

If this is 50% alpha gpc what is the other 50%?

Thanks for your question. The other 50% is silicon dioxide which is included to keep the Alpha GPC from taking on moisture and evaporating. Alpha GPC is extremely unstable and readily absorbs moisture form the air, but a 50% mix of Alpha GPC and silicon dioxide prevents this from happening. If you have a pouch of 99% Alpha GPC you would need to use the full amount after you open it as it will start to degrade immediately upon being exposed to the air.

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Purisure Alpha GPC Powder, Choline Supplement and Nootropics, Cognitive and Mood Support, Helps Stimulate Brain Focus, Memory Performance and Concentration, 100g, 167 Servings

Product ID: 63933372

Details

Brand
Purisure
Diet Type
Vegan
Flavor
Unflavoured
Item Form
Powder
Item Weight
100 g
Item dimensions L x W x H
5.91 x 0.55 x

⚡167 servings per 100g bottle

🌱Certified Organic & GMO Free

🧠300mg Alpha GPC per serving

€ 76.88

Duties & taxes included

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Description

🧠 Elevate your mind, own your day—because focus is the new flex!

CLEAN CONSCIOUS - Certified Organic, Vegan, and GMO-Free for mindful supplementation
LONG LASTING SUPPLY - 167 servings in a compact 100g bottle—brain fuel that keeps up
MOOD ENERGY SUPPORT - Clinically-backed nootropic to elevate cognitive clarity and relaxation
UNFLAVORED VERSATILITY - Mix seamlessly into your favorite drinks or smoothies without altering taste
NEURO BOOSTING POWERHOUSE - 300mg pure Alpha GPC to supercharge focus and memory

Purisure Alpha GPC Powder delivers 300mg of high-purity Alpha GPC per serving in a convenient 100g container offering 167 servings. This certified organic, vegan, and GMO-free nootropic supports enhanced brain focus, memory performance, and mood, making it an essential daily supplement for professionals seeking cognitive edge and sustained mental energy.

Specifications

ASIN	B07B1PS9PP
ASIN	B07B1PS9PP
Age Range Description	Adult
Best Sellers Rank	#372,773 in Health & Household ( See Top 100 in Health & Household ) #205 in Choline Vitamin Supplements
Brand Name	Purisure
Container Type	Bottle
Customer Reviews	4.4 4.4 out of 5 stars (313)
Date First Available	October 21, 2016
Diet Type	Vegan
Dosage Form	Powder
Flavor	Unflavoured
Item Dimensions	5.91 x 0.55 x 8.43 inches
Item Form	Powder
Item Weight	100 g
Manufacturer	Purisure
Manufacturer	Purisure
Manufacturer Part Number	PS-Alpha-GPC-100g
Material Features	Certified Organic, GMO Free
Number of Items	1
Primary Supplement Type	Alpha GPC Choline
Product Benefits	Relaxation
Product Dimensions	5.91 x 0.55 x 8.43 inches; 3.53 ounces
Special Ingredients	Alpha GPC
Specific Uses For Product	Brain,Energy
Total Servings Per Container	167
UPC	600300779462
Unit Count	3.5 Ounce

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