How can we help?
Answers about searching, comparing prices, vendors, shipping, safety and stacks. Search below or browse by topic.
Getting started
What the index is and how to use it.
What are nootropics?
Nootropics are substances people research for cognitive performance, focus, learning, memory, mood or mental energy.
Are nootropics the same as supplements?
Some nootropics are dietary supplements, but others are medicines, research compounds or products with unclear regulatory status.
What is NootropicsIndex?
NootropicsIndex is a search and comparison index for nootropics, supplements, vendors, prices and stacks.
How do I search for a supplement?
Search by compound, vendor or brand, then refine by form, vendor, price and shipping region.
Is NootropicsIndex free to use?
Yes. Searching, comparing and building a local selection are free.
What information is shown on a nootropic ingredient page?
Ingredient pages organize compound details, related products and available pricing data.
How are nootropics categorized on NootropicsIndex?
Ingredients are grouped into practical categories such as vitamins, minerals, mushrooms, herbs and amino acids.
What are herbal nootropics?
Herbal nootropics are plant-derived ingredients researched for mental performance, resilience or wellbeing.
What are amino acid nootropics?
Amino acids are building blocks used by the body in many normal processes.
Pricing & comparison
How prices, package sizes and forms are compared.
How does NootropicsIndex compare nootropic prices?
Product listings are normalized by name, vendor, form, quantity, package size and price.
What does price per unit mean?
Price per unit is a normalized way to compare products with different package sizes.
Why is price per gram useful for powders?
Price per gram makes bulk powder products easier to compare across package sizes and vendors.
Why compare capsules separately from powders?
Capsules and powders have different convenience, dosing and manufacturing trade-offs.
What is the difference between powder, capsules and solutions?
Different product forms are compared by weight, count or volume depending on how they are sold.
Are the prices on NootropicsIndex always current?
Prices can change between index updates, so the vendor checkout is the final source.
How often are prices updated?
Listings are refreshed regularly, but vendors can change prices between crawls.
Why is not the cheapest total always the best deal?
A low total can hide a high per-unit cost on a small package.
Do prices include shipping, taxes or discounts?
Listed prices usually reflect product price, not shipping, taxes, duties, fees or temporary discounts.
Why did a product price change after I clicked through?
Vendor pages may show different prices based on timing, region, currency, stock or promotions.
What currencies does NootropicsIndex support?
Currency conversion helps international comparison, but checkout rates and fees can differ.
How can I compare cheap nootropics without ignoring quality?
A low unit price is useful, but vendor documentation and product clarity matter too.
Vendors & trust
Vendor listings, affiliate links and transparency signals.
Are all vendors on NootropicsIndex verified?
Vendor inclusion means indexed for comparison, not guaranteed quality, safety or compliance.
How should I choose a nootropics vendor?
Look for transparent labels, batch details, testing, clear policies and realistic marketing language.
Are the listed vendors trustworthy?
NootropicsIndex can surface vendors, but visitors should still check reviews and product documentation.
Do you sell supplements directly?
No. NootropicsIndex is an independent comparison tool and does not process orders.
What happens when I click Buy?
You are taken to the vendor product page; some links may be affiliate links.
What is a certificate of analysis?
A COA is a lab document that may show identity, purity, potency or contaminant testing.
Why do certificates of analysis matter?
A COA can help buyers evaluate identity and purity beyond marketing copy.
Does NootropicsIndex test products?
NootropicsIndex is primarily a search, index and comparison platform.
What are affiliate links?
Affiliate links may earn NootropicsIndex a commission when a visitor makes a qualifying purchase.
Does affiliate commission affect rankings?
Affiliate relationships should not determine whether a product is shown as a better value.
Why does NootropicsIndex use sponsored link attributes?
Sponsored link attributes signal that an outbound vendor link may have a commercial relationship.
Shipping & regions
Region filters, shipping availability and import reminders.
What does the region filter do?
The region filter helps visitors focus on vendors that are more relevant for their location.
Can I use NootropicsIndex to find vendors shipping to Europe?
Region filters can help European buyers narrow vendor lists, but they are not legal guarantees.
Can I use NootropicsIndex to find vendors shipping to the United States?
The region filter can focus listings for the United States, but product status can vary by ingredient.
Why do some products not ship to my country?
Vendor policies and local rules can restrict certain compounds or destinations.
How do I change my region?
Use the region selector in the header to update shipping filters site-wide.
Stacks & selection
Saving products, comparing later and researching stacks.
What is a nootropic stack?
A nootropic stack is a combination of two or more ingredients used together.
How should beginners approach nootropic stacks?
Beginners should avoid adding many new products at once.
What does cycling mean with nootropics?
Cycling means using a substance on a planned schedule rather than continuously.
What are supplement stacks on NootropicsIndex?
Stacks are combinations of ingredients or products organized around a theme, routine or use case.
How is the estimated daily cost of a stack calculated?
A stack estimated daily cost is based on product prices, package sizes and dose assumptions.
What is the Selection list?
Selection is a local shortlist where you collect products to compare side by side.
Do I need an account to compare?
No. Searching, filtering and using Selection work without an account.
How do I save products for later?
Add products to Selection to keep a local shortlist in your browser.
Safety & sourcing
Safety, sourcing, COAs, legality and cautious supplement language.
Does NootropicsIndex give medical advice?
No. NootropicsIndex is an educational and product comparison resource.
Are nootropics safe?
Safety depends on the substance, dose, product quality and personal context.
Can nootropics interact with medication?
Some supplements and nootropic compounds can interact with prescription or over-the-counter medication.
Can I use nootropics while pregnant or breastfeeding?
Pregnancy and breastfeeding require extra caution and professional guidance.
Are nootropics legal?
Legal status depends on the substance and the country.
Are nootropics FDA approved?
Dietary supplements in the United States are generally not approved by the FDA before marketing.
Why do supplement websites avoid disease claims?
Supplement content should not present products as diagnosing, treating, curing or preventing diseases.
What are structure/function claims?
Structure/function claims describe support for normal body structure or function without disease claims.
Can NootropicsIndex say a supplement cures or treats a condition?
No. NootropicsIndex should not claim that a supplement cures, treats or prevents a medical condition.
Do nootropics work the same for everyone?
People can respond differently because of sleep, nutrition, genetics, tolerance, medication and context.
How long does it take for nootropics to work?
Timing depends on the ingredient and the reason someone is researching it.
What is tolerance?
Tolerance means a person may notice a weaker response to a substance after repeated use.
What are common side effects of nootropics?
Possible unwanted effects vary widely by ingredient.
Can nootropics replace sleep, diet or exercise?
No. Nootropics should not be viewed as a replacement for health foundations.
What are racetams?
Racetams are synthetic compounds often discussed in nootropics communities.
What are peptides and research compounds?
Peptides and research compounds are a higher-caution category with complex legal status.
What should I check before buying nootropics online?
Check ingredient name, serving size, form, vendor reputation, testing, shipping and legal status.
How should I think about dosing?
NootropicsIndex does not recommend doses; use labels, credible references and professional guidance.
Still cannot find an answer?
Send a note if something in the index is unclear or missing.