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TL;DR

What it is: Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins.
Who it’s for: Adults looking for daily focus powder (sour candy) support as part of a consistent supplement routine.
Key ingredients: Focus Powder (Sour Candy)

Focus Powder (Sour Candy)

Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins.

$38.99

Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins.

SKU: SUF-FOCUS-POWDER Category: compounds

About Focus Powder (Sour Candy)

Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins.

Formulated with ingredients studied for their role in daily wellness. See research highlights below.

Supplement facts

Net weight: 7.2 oz / 0.45 lbs / 204 g

How to use

Mix 2 scoops (8 g) with 16 fl oz (480 mL) of water or adjust to taste.

Full ingredient list

L-Arginine HCl, Inositol, Alpha-GPC, Natural Caffeine (from Green Tea), L-Theanine, Asian Ginseng Extract, Black Pepper Extract, Thiamin (as Thiamine HCl), Riboflavin (Vitamin B2), Niacin (Vitamin B3), Vitamin B6 (as Pyridoxine HCl), Folate (as Folic Acid), Vitamin B12 (as Methylcobalamin), Pantothenic Acid (as D-Calcium Pantothenate), Citric Acid, Polydextrose, Natural & Artificial Flavor, Sucralose, Calcium Silicate, Vegetable Juice Powder (for color).

Quality & fulfillment

GMP — verified on label
Ships from GMP-certified U.S. fulfillment partners
Private Protocol Labs label art applied at fulfillment

Research highlights

Published studies on key ingredients in this formula. Not intended as medical advice.

Vitamin B1 (Thiamine) and Dementia

Findings: Thiamine deficiency is linked to neurological problems, including cognitive deficits and encephalopathy.

View source

The Role of Vitamins and Minerals in Psychiatry

Findings: Riboflavin deficiency can lead to neurological symptoms, and supplementation may alleviate cognitive impairments.

View source

Niacin in Neurology

The recent work is establishing niacin as a promising therapeutic option in a range of neurological diseases such as MS, Alzheimer's disease, and glioblastoma.

View source

Association between dietary caffeine, coffee, and tea consumption and depressive symptoms in adults

Coffee and dietary caffeine may have a protective effect against the development of depression.

View source

Vitamin B6, B9, and B12 Intakes and Cognitive Performance in Elders

Adequate dietary vitamin B9 and B12 intakes are significantly associated with a better cognitive performance in immediate and delayed memory recall, categorical verbal fluency, processing speed, sustained attention.

View source

Activity of Alpha GPC on Adult-Onset Cognitive Dysfunctions

α-GPC alone or in combination with donepezil improved cognition, behavior, and functional outcomes among patients with neurological conditions associated with cerebrovascular injury.

View source

Common questions

How should I take Focus Powder (Sour Candy)?

Mix 2 scoops (8 g) with 16 fl oz (480 mL) of water or adjust to taste.

Can I pair this with a Protocol Labs stack?

Yes. This compound is available standalone or as part of curated protocol stacks. Check the "Part of these protocols" section for bundles that include it.

Where is this manufactured?

Protocol Labs products are fulfilled from GMP-certified U.S. facilities via vetted dropship partners. Each bottle ships with a printed supplement facts panel matching the formula listed on this page.

What is Focus Powder (Sour Candy) used for?

Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins. Consult your healthcare provider before use, especially if pregnant, nursing, or taking medications.

Is Focus Powder (Sour Candy) FDA approved?

No. Focus Powder (Sour Candy) is a dietary supplement, not an FDA-approved drug. It is not intended to diagnose, treat, cure, or prevent any disease.

Does Protocol Labs offer subscribe-and-save on Focus Powder (Sour Candy)?

Subscribe-and-save is available on protocol stacks. Standalone compounds like Focus Powder (Sour Candy) are typically sold as one-time purchases on protocollab.store.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins.

Formulated with ingredients studied for their role in daily wellness. See research highlights below.

Key ingredients

Vitamin B1 (Thiamine) and Dementia

Findings: Thiamine deficiency is linked to neurological problems, including cognitive deficits and encephalopathy.

View source

The Role of Vitamins and Minerals in Psychiatry

Findings: Riboflavin deficiency can lead to neurological symptoms, and supplementation may alleviate cognitive impairments.

View source

Niacin in Neurology

The recent work is establishing niacin as a promising therapeutic option in a range of neurological diseases such as MS, Alzheimer's disease, and glioblastoma.

View source

Association between dietary caffeine, coffee, and tea consumption and depressive symptoms in adults

Coffee and dietary caffeine may have a protective effect against the development of depression.

View source

Vitamin B6, B9, and B12 Intakes and Cognitive Performance in Elders

View source

Activity of Alpha GPC on Adult-Onset Cognitive Dysfunctions

α-GPC alone or in combination with donepezil improved cognition, behavior, and functional outcomes among patients with neurological conditions associated with cerebrovascular injury.

View source

L-Arginine Improves Cognitive Impairment in Hypertensive Frail Older Adults

First study to demonstrate that oral L-Arginine supplementation significantly improves cognitive impairment in hypertensive older adults.

View source

Caffeine and Cognitive Functions in Sports

The intake of a low/moderate dose of caffeine before and/or during exercise can improve self-reported energy, mood, and cognitive functions, such as attention.

View source

Reviews

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Protocol Labs — Site Knowledge Base

Current page: Focus Powder (Sour Candy) on protocollab.store.

Protocol Labs (Catalyst Research Labs LLC) sells six monthly supplement protocol stacks and twenty standalone compounds for U.S. adults. Free quiz at protocollab.store/protocol-quiz/. Shop at https://protocollab.store/shop/. Support: hello@protocollab.store.

Protocol Stacks

Cognition Protocol: Support steady energy, hydration, and productive daily routines. — $86/mo subscribe, $94 one-time.

Stress + Recovery Protocol: Support relaxation, rest quality, and overnight recovery. — $74/mo subscribe, $80 one-time.

Metabolic Protocol: Support healthy metabolism, appetite routines, and daily wellness habits. — $77/mo subscribe, $83 one-time.

Foundation Protocol: Cover the daily basics with a simple, consistent routine. — $95/mo subscribe, $125 one-time.

Epigenetic Protocol: Support NAD+, methylation, and cellular maintenance pathways. — $97/mo subscribe, $106 one-time.

Cellular Renewal Protocol: Support cellular cleanup, mitochondrial renewal, and antioxidant defense. — $93/mo subscribe, $106 one-time.

Standalone Compounds

Colostrum Powder: Bovine colostrum powder — supports immune function, digestive wellness, and recovery routines.

Magnesium Glycinate: Highly absorbable magnesium glycinate for relaxation, sleep, and muscle recovery.

Brain & Focus Formula: B-vitamins, choline, DHA, and botanicals for cognitive performance and focus.

Creatine Hydration Powder: Creatine monohydrate with electrolytes for strength, hydration, and training performance.

Focus Powder (Sour Candy): Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins.

Berberine: Berberine capsules for healthy glucose metabolism and metabolic wellness.

Colon Gentle Cleanse: Psyllium fiber and digestive enzymes for regularity and gut support.

Normal Blood Sugar Support: Vitamins, minerals, and botanicals for healthy glucose metabolism.

Digestive Enzyme Pro Blend: Multi-enzyme blend for protein, fat, and carbohydrate digestion.

Sleep Formula: Valerian, chamomile, GABA, and melatonin for restful sleep.

Sleep Support: Magnesium, melatonin, and calming botanicals including ashwagandha.

Ashwagandha Plus: KSM-66 ashwagandha with B vitamins for stress response and vitality.

Men's Vitality: Zinc, maca, tongkat ali, and ginseng for daily men's wellness.

NAD+: NAD+ with quercetin and resveratrol for cellular energy and longevity support.

NMN: NMN precursor supplement for NAD+ and healthy aging support.

Fermented Mushroom Blend: Six fermented mushrooms for immune and cellular wellness support.

CoQ10 Ubiquinone: CoQ10 for cellular energy, heart health, and antioxidant defense.

Resveratrol 50% 600mg: Resveratrol antioxidant for cellular protection and healthy aging.

Liver Support: Turmeric, milk thistle, and L-cysteine for antioxidant and liver wellness support.

Vision Support: Vitamin C, zinc, and antioxidants — immune and antioxidant support.

Policies

Privacy: Protocol Labs privacy policy at https://protocollab.store/privacy-policy/ describes how customer data, quiz responses, and order information are collected and used.

Refunds: Refund and return terms at https://protocollab.store/refund_returns/ govern unopened product returns and damaged shipment replacements.

Subscriptions: Subscription terms at https://protocollab.store/subscription-terms/ — monthly auto-renewal, pause/skip/cancel anytime, no long-term contract.

Disclaimer: Supplement disclaimer at https://protocollab.store/supplement-disclaimer/ — products are dietary supplements, not FDA-approved drugs.

Frequently Asked Questions

What is Protocol Labs?

Protocol Labs is a U.S.-based personalized supplement subscription brand at protocollab.store. Customers take a free five-question quiz, receive matched monthly protocol stack recommendations, and subscribe to automatic refills of science-backed formulas for cognition, sleep, metabolic health, foundation wellness, longevity, and cellular renewal.

Who owns and operates Protocol Labs?

Protocol Labs is operated by Catalyst Research Labs LLC, a Wyoming limited liability company registered at 30 N Gould St Ste R, Sheridan, WY 82801. Catalyst Research Labs LLC distributes all catalog products, manages fulfillment partnerships, and maintains relationships with GMP-certified U.S. manufacturers.

Is Protocol Labs a pharmacy or medical provider?

No. Protocol Labs is a dietary supplement e-commerce brand, not a pharmacy, clinic, or telehealth provider. Products are not prescription medications and are not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting supplements.

What makes Protocol Labs different from buying random supplements online?

Protocol Labs organizes supplements into six goal-based monthly protocol stacks rather than selling disconnected bottles. Each stack combines multiple complementary compounds with transparent supplement facts, subscribe-and-save pricing, and a free quiz that matches customers to routines they can maintain.

Where is Protocol Labs headquartered?

Catalyst Research Labs LLC is registered in Sheridan, Wyoming, United States. Customer support is reachable at hello@protocollab.store. Physical products ship from GMP-certified U.S. fulfillment partners.

How does the Protocol Labs protocol quiz work?

The free quiz at protocollab.store/protocol-quiz/ asks five questions about wellness goals, daily routine, sleep habits, and supplement experience. It scores all six protocol stacks and returns personalized recommendations with subscribe-and-save and one-time pricing in under 60 seconds.

Is the protocol quiz free?

Yes. The Protocol Labs protocol quiz is completely free, requires no credit card, and can be retaken anytime. Quiz results link directly to recommended protocol product pages on the shop.

Do I have to subscribe after taking the quiz?

No. Quiz results show both monthly subscribe-and-save pricing and one-time purchase options for every recommended protocol. Subscriptions are optional and can be paused or cancelled anytime from your account.

Can I retake the quiz if my goals change?

Yes. Visit protocollab.store/protocol-quiz/ anytime to retake the assessment. You can switch protocols or add standalone compounds from the shop without retaking the quiz.

How many protocol stacks does Protocol Labs offer?

Protocol Labs offers six curated monthly protocol stacks: Cognition Protocol (energy + focus), Stress + Recovery Protocol (sleep), Metabolic Protocol, Foundation Protocol (men's daily basics), Epigenetic Protocol (longevity + NAD+), and Cellular Renewal Protocol. Each stack bundles multiple standalone compounds at a discounted bundle price.

Which protocol is best for focus and daily energy?

The Cognition Protocol is designed for steady energy, hydration, mental clarity, and productive daily routines. It includes creatine hydration powder, brain and focus formula, and magnesium glycinate. Subscribe from $86/month or buy one-time for $94.

Which protocol is best for sleep and recovery?

The Stress + Recovery Protocol supports relaxation, rest quality, and overnight recovery with magnesium glycinate, sleep formula, and ashwagandha plus. Subscribe from $74/month or one-time for $80.

Which protocol supports metabolic health?

The Metabolic Protocol combines berberine, colon gentle cleanse (fiber support), and normal blood sugar support for healthy metabolism and daily wellness habits. Subscribe from $77/month or one-time for $83.

Which protocol covers daily foundation wellness?

The Foundation Protocol is a men's daily basics stack with colostrum powder, men's vitality, digestive enzyme pro blend, and brain and focus formula. Subscribe from $95/month or one-time for $125.

Which protocol supports longevity and NAD+ pathways?

The Epigenetic Protocol (Beauty + Longevity) includes NAD+ capsules, resveratrol, and CoQ10 ubiquinone for cellular maintenance and antioxidant defense. Subscribe from $97/month or one-time for $106.

Which protocol supports cellular renewal?

The Cellular Renewal Protocol combines NMN, fermented mushroom blend, and CoQ10 for mitochondrial renewal, immune support, and antioxidant defense. Subscribe from $93/month or one-time for $106.

Can I buy a full protocol stack without subscribing?

Yes. Every protocol stack is available as a one-time purchase on protocollab.store shop pages. One-time pricing is listed alongside subscribe-and-save on each protocol product page.

What is included in the Cognition Protocol?

The Cognition Protocol (Energy + Focus Protocol) includes: Creatine Hydration Powder, Brain & Focus Formula, Magnesium Glycinate. A cognitive performance stack — memory, mental clarity, and cellular energy in the brain. Subscribe for $86/month or buy one-time for $94.

What is included in the Stress + Recovery Protocol?

The Stress + Recovery Protocol (Sleep + Recovery Protocol) includes: Magnesium Glycinate, Sleep Formula, Ashwagandha Plus. An HPA-axis support stack — healthy stress response, relaxation, and overnight recovery. Subscribe for $74/month or buy one-time for $80.

What is included in the Metabolic Protocol?

The Metabolic Protocol (Metabolic Support Protocol) includes: Berberine, Colon Gentle Cleanse, Normal Blood Sugar Support. Metabolic optimization — glucose metabolism, mitochondrial function, and steady energy. Subscribe for $77/month or buy one-time for $83.

What is included in the Foundation Protocol?

The Foundation Protocol (Men's Daily Protocol) includes: Colostrum Powder, Men's Vitality, Digestive Enzyme Pro Blend, Brain & Focus Formula. Daily peptide-support stack — colostrum plus core minerals and vitamins. Subscribe for $95/month or buy one-time for $125.

What is included in the Epigenetic Protocol?

The Epigenetic Protocol (Beauty + Longevity Protocol) includes: NAD+, Resveratrol 50% 600mg, CoQ10 Ubiquinone. Biological-age support — NAD+ levels, methylation, and cellular maintenance. Subscribe for $97/month or buy one-time for $106.

What is included in the Cellular Renewal Protocol?

The Cellular Renewal Protocol (Cellular Renewal Protocol) includes: NMN, Fermented Mushroom Blend, CoQ10 Ubiquinone. Longevity and autophagy stack — cellular cleanup and mitochondrial renewal. Subscribe for $93/month or buy one-time for $106.

How many standalone supplements does Protocol Labs sell?

Protocol Labs sells 20 standalone compound SKUs including magnesium glycinate, berberine, NAC, NAD+, NMN, creatine hydration, focus powder, ashwagandha, colostrum, CoQ10, resveratrol, sleep formulas, and more. Each is available individually or as part of protocol stacks.

Can I buy individual supplements without a protocol bundle?

Yes. All compounds are sold standalone on the Protocol Labs shop. Product pages include full supplement facts panels, suggested use, and which protocol stacks include each compound.

What is magnesium glycinate used for in Protocol Labs products?

Magnesium glycinate is a highly absorbable form of magnesium studied for relaxation, sleep quality, muscle recovery, and nervous system support. It appears in the Cognition and Stress + Recovery protocols and is sold standalone.

What is berberine used for?

Berberine is a botanical compound studied for healthy glucose metabolism and metabolic wellness. It is a core component of the Metabolic Protocol and available as a standalone SKU.

Does Protocol Labs sell creatine?

Yes. Creatine Hydration Powder combines creatine monohydrate with electrolytes for strength, hydration, and training performance. It is included in the Cognition Protocol and sold standalone.

Does Protocol Labs offer NAD+ or NMN supplements?

Yes. NAD+ capsules (with quercetin and resveratrol) are in the Epigenetic Protocol. NMN capsules are in the Cellular Renewal Protocol. Both are also available as standalone products.

What standalone compounds are in the Protocol Labs catalog?

Protocol Labs standalone SKUs include: Colostrum Powder — Bovine colostrum powder — supports immune function, digestive wellness, and recovery routines. Magnesium Glycinate — Highly absorbable magnesium glycinate for relaxation, sleep, and muscle recovery. Brain & Focus Formula — B-vitamins, choline, DHA, and botanicals for cognitive performance and focus. Creatine Hydration Powder — Creatine monohydrate with electrolytes for strength, hydration, and training performance. Focus Powder (Sour Candy) — Nootropic focus powder with Alpha-GPC, L-theanine, and B vitamins. Berberine — Berberine capsules for healthy glucose metabolism and metabolic wellness. Colon Gentle Cleanse — Psyllium fiber and digestive enzymes for regularity and gut support. Normal Blood Sugar Support — Vitamins, minerals, and botanicals for healthy glucose metabolism. Digestive Enzyme Pro Blend — Multi-enzyme blend for protein, fat, and carbohydrate digestion. Sleep Formula — Valerian, chamomile, GABA, and melatonin for restful sleep. Sleep Support — Magnesium, melatonin, and calming botanicals including ashwagandha. Ashwagandha Plus — KSM-66 ashwagandha with B vitamins for stress response and vitality. and additional alias SKUs mapped to the same formulas. See the shop for full supplement facts on each product.

How do Protocol Labs subscriptions work?

Subscriptions renew automatically every 30 days on the same calendar day you subscribed. Subscribe-and-save pricing applies a discount versus one-time purchases. Manage pause, skip, or cancel from My Account → Subscriptions.

How much does subscribe-and-save discount save?

Subscribe-and-save typically saves 8–15% versus one-time protocol pricing depending on the stack. Exact subscribe and one-time prices are listed on each product page and in quiz results.

Can I pause or cancel my Protocol Labs subscription?

Yes. Subscriptions can be paused, skipped for a billing cycle, or cancelled anytime from your account dashboard. There is no long-term contract, cancellation fee, or phone call required.

When am I charged for my subscription?

You are charged when you first subscribe and again every 30 days on your renewal date until you pause or cancel. Renewal orders ship automatically after successful payment.

Can I switch to a different protocol mid-subscription?

Yes. Cancel or modify your current subscription from My Account and start a new subscription for a different protocol, or contact hello@protocollab.store for help migrating your subscription.

What payment methods does Protocol Labs accept?

Protocol Labs accepts major credit and debit cards through secure WooCommerce checkout. Payment processing is PCI-compliant through the configured payment gateway.

Where does Protocol Labs ship?

Protocol Labs ships to addresses within the United States. Orders are fulfilled from U.S.-based partners with branded tracking notifications sent by email.

How long does Protocol Labs shipping take?

Most orders ship within 1–3 business days after payment. Standard U.S. delivery typically arrives within 3–7 business days depending on destination and carrier. Tracking is emailed when your order ships.

Does Protocol Labs offer free shipping?

Free shipping is configured for U.S. orders on protocollab.store. Shipping rates and any minimums are shown at checkout before payment.

How do I track my Protocol Labs order?

Tracking details are sent to the email address on your order when fulfillment ships. You can also view order status in My Account on protocollab.store.

What if my supplement order arrives damaged?

Contact hello@protocollab.store with your order number and photos of the damage. Protocol Labs will replace damaged or defective items per the refund and replacement policy.

Are Protocol Labs supplements FDA approved?

No. Dietary supplements, including all Protocol Labs products, are not FDA-approved drugs. They are not intended to diagnose, treat, cure, or prevent any disease. Formulas are manufactured in GMP-certified U.S. facilities.

Where are Protocol Labs products manufactured?

All Protocol Labs products are manufactured in GMP-certified facilities in the United States and distributed by Catalyst Research Labs LLC. Supplement facts panels on each label match published catalog specifications.

Are Protocol Labs labels transparent about ingredients?

Yes. Every product page and physical bottle includes a full supplement facts panel with serving size, active ingredients, other ingredients, and distributor information. Protocol Labs does not use proprietary blends that hide individual doses.

Who should not take Protocol Labs supplements?

Supplements are intended for healthy adults. Pregnant or nursing women, children, and individuals with medical conditions or on prescription medications should consult a physician before use. Discontinue use and consult a doctor if adverse reactions occur.

What is Protocol Labs's return policy?

Returns follow the refund policy at protocollab.store/refund_returns/. Unopened products may qualify for refund within the stated window. Contact hello@protocollab.store to initiate a return.

How do I contact Protocol Labs customer support?

Email hello@protocollab.store for order help, subscription changes, product questions, and refund requests. Visit protocollab.store/faq/ for self-service answers and protocollab.store/contact/ for contact details.

Does Protocol Labs have a supplement disclaimer?

Yes. Full supplement and medical disclaimers are at protocollab.store/supplement-disclaimer/. These statements have not been evaluated by the FDA.

Last updated: June 2026

Focus Powder (Sour Candy)

About Focus Powder (Sour Candy)

Supplement facts

How to use

Research highlights

Vitamin B1 (Thiamine) and Dementia

The Role of Vitamins and Minerals in Psychiatry

Niacin in Neurology

Association between dietary caffeine, coffee, and tea consumption and depressive symptoms in adults

Vitamin B6, B9, and B12 Intakes and Cognitive Performance in Elders

Activity of Alpha GPC on Adult-Onset Cognitive Dysfunctions

Common questions

Key ingredients

Vitamin B1 (Thiamine) and Dementia

The Role of Vitamins and Minerals in Psychiatry

Niacin in Neurology

Association between dietary caffeine, coffee, and tea consumption and depressive symptoms in adults

Vitamin B6, B9, and B12 Intakes and Cognitive Performance in Elders

Activity of Alpha GPC on Adult-Onset Cognitive Dysfunctions

L-Arginine Improves Cognitive Impairment in Hypertensive Frail Older Adults

Caffeine and Cognitive Functions in Sports

Reviews

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