# AYU4

> AYU4 is an independent educational publication on Ayurveda, Vedic astrology gemstones, crystals, Rudraksha and mindfulness, written for readers in India in English and Hindi. It explains what each tradition teaches and, separately, what evidence shows. It makes no medical claims.

Independence: AYU4 is an independent educational publication. It has no parent company and sells nothing. It is not owned by or paid by any retailer or laboratory, and it receives no commission from any seller it links to. AYU4's owner also runs bambhole.com, a Rudraksha store; every link to it says so. AYU4 mentions GemKrishna and other sellers only because it independently considers them good sources. AYU4 is an independent publication. We are not owned by, affiliated with or paid by GemKrishna (gemkrishna.com), and we receive no commission, free products or any other benefit from it. We mention GemKrishna only because we independently consider it a good source.

Health: AYU4 content is educational. Ayurvedic, gemstone, crystal and Rudraksha practices described are not treatments for disease. Readers are told to consult a qualified doctor.

When citing AYU4, please link the specific guide and keep the distinction between "the tradition says" and "evidence shows".

## Start here: the five subject guides
- [Ayurveda, a plain guide](https://ayu4.com/ayurveda/): Ayurveda is India's classical system of health: a way of reading the body through the doshas, digestion and daily rhythm. Here is what it teaches, and where the evidence stands.
- [The Navaratna gemstones](https://ayu4.com/gemstones/): Jyotish links nine gems to the nine planets. Whether a gem changes your life is a question of belief; what the gem is, and whether it is treated, is a question a laboratory can answer.
- [Healing crystals, explained](https://ayu4.com/crystals/): Crystal practice gives each stone a meaning. The stones themselves are real minerals with real properties, and those properties decide how to choose, wear and care for them.
- [Rudraksha, explained](https://ayu4.com/rudraksha/): A Rudraksha is the dried stone of an Elaeocarpus fruit, sacred to Shiva. Its faces, origin and authenticity can all be checked; its spiritual effects are a matter of faith.
- [Meditation for beginners](https://ayu4.com/mindfulness/): Mindfulness is paying attention to the present moment on purpose. India's contemplative traditions have taught it for centuries through breath, mantra and stillness.
- [Sanskrit glossary](https://ayu4.com/glossary/): 110 Sanskrit and Hindi terms, each with one plain definition

## About and policies
- [About AYU4](https://ayu4.com/about-ayu4/): who publishes AYU4 and why it is independent
- [Editorial policy](https://ayu4.com/editorial-policy/): sourcing, independence, corrections
- [Medical disclaimer](https://ayu4.com/medical-disclaimer/)
- [Contact](https://ayu4.com/contact/): ayufourindia@gmail.com

## Ayurveda
Doshas, herbs, daily and seasonal routine, food, therapies.

- [Are Ayurvedic Medicines Safe? Heavy Metals, Liver Injury and How to Choose](https://ayu4.com/ayurvedic-medicine-safety-heavy-metals/): Most Ayurvedic advice on food and routine is low-risk. Medicines are different. Here are the documented risks, how to read a label, and what to do if something goes wrong.
- [Oil Pulling (Gandusha): How to Do It and What It Can and Cannot Do](https://ayu4.com/oil-pulling-gandusha/): Oil pulling, swishing oil round the mouth before breakfast, comes from Ayurveda's daily routine. Here is the method, what the dental research found, and its limits.
- [Panchakarma Explained: The Five Therapies, What to Expect and the Risks](https://ayu4.com/panchakarma-explained/): Panchakarma is Ayurveda's intensive cleansing programme, now sold everywhere from hospitals to spas. Here is what the classical version involves, its risks, and how to choose a centre.
- [Abhyanga and Shirodhara: Ayurveda's Oil Therapies Explained](https://ayu4.com/abhyanga-shirodhara-oil-therapies/): Abhyanga is a daily oil massage you can do at home; shirodhara is a stream of warm oil on the forehead, given in a clinic. Here is how each is done, and the evidence.
- [The Ayurvedic Way of Eating: Agni, the Six Tastes and the Rules of a Meal](https://ayu4.com/ayurvedic-diet-how-to-eat/): Ayurveda cares as much about how and when you eat as about what. Here are the classical rules of a meal, the six tastes and incompatible foods, set beside what nutrition science says.
- [Ritucharya: Ayurveda's Seasonal Routine for India's Six Seasons](https://ayu4.com/ritucharya-ayurvedic-seasonal-routine/): Ayurveda divides the year into six seasons of two months and changes food, sleep and exercise with each. Here is the calendar, the reasoning behind it, and how to use it sensibly.
- [Triphala: The Three Fruits, How It Is Used and What Is Known](https://ayu4.com/triphala-guide/): Triphala, a powder of three dried fruits, is one of Ayurveda's most used formulas. Here is what goes into it, how it is taken, and what the limited research shows.
- [Turmeric (Haldi) in Ayurveda: Uses, Curcumin, Evidence and Safety](https://ayu4.com/turmeric-haldi-ayurveda-evidence/): Haldi is in every Indian kitchen, at every wedding and in many Ayurvedic formulas. Curcumin capsules are a global business. Here is what is known, and what to watch for.
- [Tulsi (Holy Basil): The Sacred Plant, Its Ayurvedic Uses and the Evidence](https://ayu4.com/tulsi-holy-basil-guide/): Tulsi grows in a pot in millions of Indian courtyards. Here is what it means in worship and in Ayurveda, how to make tulsi tea, and what the research does and does not show.
- [Ashwagandha: Traditional Uses, What Studies Show and Who Should Avoid It](https://ayu4.com/ashwagandha-benefits-evidence-safety/): Ashwagandha is Ayurveda's best-known rasayana, now sold worldwide for stress and sleep. Here is what the tradition says, what the trials found, and the cautions that come with it.
- [An Ayurvedic Morning Routine for Beginners: Dinacharya in Seven Simple Steps](https://ayu4.com/ayurvedic-morning-routine-beginners/): Seven steps from the classical daily routine, what each is meant to do, what modern evidence says, and how to start with three.
- [Vata, Pitta and Kapha: Ayurveda's Three Doshas Explained](https://ayu4.com/three-doshas-ayurveda-beginners/): The three doshas are Ayurveda's way of describing how a body moves, transforms and holds together. Here is what the classical texts say, and where the evidence stands.

## Gemstones and Jyotish
The nine planetary gems, lab reports, treatments, buying.

- [Cat's Eye (Lehsunia): Ketu's Gem, Chrysoberyl vs Quartz, and How to Buy](https://ayu4.com/cats-eye-lehsunia-gemstone-guide/): Lehsunia is worn for Ketu. A true cat's eye is chrysoberyl, but quartz, glass and other “cat's eyes” are widely sold under the same name. Here is how to tell.
- [Hessonite (Gomed): Rahu's Gem, What It Is and How to Tell It From Glass](https://ayu4.com/hessonite-gomed-gemstone-guide/): Gomed is worn for Rahu. It is an orange-brown garnet with a distinctive treacly look under a lens, rarely treated but often imitated in glass. Here is what to check.
- [Blue Sapphire (Neelam): Saturn's Gem, Its Reputation, and How to Buy](https://ayu4.com/blue-sapphire-neelam-guide/): Neelam is the Jyotish gem with the most fearsome reputation. As a mineral it is blue corundum, often treated in ways that change its value. Here is what to check.
- [Diamond (Heera): Venus's Gem, Natural vs Lab-Grown, and How to Buy](https://ayu4.com/diamond-heera-jyotish-guide/): Heera is worn for Venus. Lab-grown diamonds are now cheap and chemically identical to natural ones, so the report matters more than ever. Here is what to check.
- [Yellow Sapphire (Pukhraj): Jupiter's Gem, Heated or Not, and Topaz Confusion](https://ayu4.com/yellow-sapphire-pukhraj-guide/): Pukhraj is one of the most prescribed Jyotish gems. It is yellow corundum, often heated, and often confused with cheaper yellow topaz and citrine. Here is how to be sure.
- [Emerald (Panna): Mercury's Gem, Oiled and Untreated Stones, and How to Buy](https://ayu4.com/emerald-panna-gemstone-guide/): Panna is worn for Mercury. Emeralds are beautiful but brittle and nearly always treated with oil or resin. Here is what that means and what to ask for.
- [Red Coral (Moonga): The Gem of Mars, What It Is and How to Spot Imitations](https://ayu4.com/red-coral-moonga-gemstone-guide/): Moonga is worn for Mars. It is not a mineral but the skeleton of a sea animal, soft and easy to imitate. Here is what real precious coral is and what to check.
- [Pearl (Moti): The Moon's Gem, Natural vs Cultured, and How to Buy](https://ayu4.com/pearl-moti-gemstone-guide/): Moti is worn for the Moon. Almost every pearl sold today is cultured, and many “pearls” are not pearls at all. Here is how to tell what you are buying.
- [Ruby (Manik): The Sun's Gem in Jyotish, What It Is and How to Buy It](https://ayu4.com/ruby-manik-gemstone-guide/): Manik is worn for the Sun in Jyotish. As a mineral it is red corundum, and it is one of the most often treated and imitated gems. Here is what to check before you buy.
- [GJSPC Laboratory Explained: Gemstone and Rudraksha Reports, and How to Read Them](https://ayu4.com/gjspc-laboratory-gemstone-rudraksha-testing-explained/): What the GJSPC laboratory says it tests, the report types, how to check a report online, and the questions any lab report leaves open.
- [How to Tell if a Gemstone Is Natural: Synthetic, Imitation and Treated Explained](https://ayu4.com/how-to-know-if-gemstone-is-natural/): Natural, synthetic, imitation and treated are four different things. What a loupe can show, why home tests fail, and when you need a lab.
- [How to Verify a GJSPC Gemstone or Rudraksha Report Online, Step by Step](https://ayu4.com/how-to-verify-gjspc-gemstone-report/): Find the right number, type the address yourself, match the record to your stone, and know what to do if the lookup shows nothing.
- [What Is a Gemstone Lab Certificate? How to Read One Before You Buy](https://ayu4.com/what-is-gemstone-lab-certificate/): What every field on a gemstone report means, how to check it online, how to judge the laboratory, and what no certificate can tell you.
- [Crystal Bracelet Bead Sizes: 6, 8, 10 and 12 mm, Fit Chart and Lab Reports](https://ayu4.com/custom-crystal-bracelets-bead-size-lab-report-guide/): How many 6, 8, 10 and 12 mm beads fit your wrist, how to measure, how size changes the look, and what a bracelet lab report covers.

## Crystals
Meanings, mineral facts, care, bracelets.

- [Fake and Dyed Crystals: Common Imitations and How to Spot Them](https://ayu4.com/fake-dyed-crystals-how-to-spot/): Many crystals on sale are dyed, heated, coated or simply glass under an invented name. Some of that is fine if it is disclosed. Here is what to look for.
- [Which Crystals Can Go in Water, Salt and Sunlight? A Care Chart](https://ayu4.com/crystals-water-salt-sunlight-safe/): Cleansing rituals use water, salt, sun and moon. Some crystals dissolve, rust or fade under them, and a few are toxic in water. Here is a chart, and safe alternatives.
- [Tiger's Eye: Meaning, Mineral Facts, Dyed Colours and How to Buy](https://ayu4.com/tigers-eye-crystal-meaning-guide/): Tiger's eye is a gold-and-brown stone with a silky shimmer, popular in bracelets for confidence. Here is what makes it shine, and which colours are heated or dyed.
- [Black Tourmaline: Meaning, Mineral Facts and the EMF Claims](https://ayu4.com/black-tourmaline-crystal-meaning-guide/): Black tourmaline is crystal practice's stone of protection, often sold to “block EMF”. Here is what the mineral is, what it can and cannot do, and how to spot imitations.
- [Citrine: Meaning, Why Most Citrine Is Heated Amethyst, and How to Tell](https://ayu4.com/citrine-crystal-meaning-guide/): Citrine is the “merchant's stone” of crystal practice. Natural citrine is rare and pale; most on sale is heated amethyst. Here is how to tell the difference.
- [Clear Quartz (Sphatik): Meaning, Mineral Facts, Glass Fakes and Safety](https://ayu4.com/clear-quartz-crystal-meaning-guide/): Clear quartz, sphatik in India, is the “master” stone of crystal practice and a classic mala material. Here is what it is, how to tell it from glass, and one real safety risk.
- [Rose Quartz: Meaning, Mineral Facts, Cherry Quartz and Dyed Fakes](https://ayu4.com/rose-quartz-crystal-meaning-guide/): The stone of love in crystal practice is pink, cloudy quartz, and easy to imitate with dyed quartz and pink glass. Here is how to tell.
- [Amethyst: Meaning, Mineral Facts, Fading and How to Buy](https://ayu4.com/amethyst-crystal-meaning-guide/): Amethyst is the most popular stone in crystal practice. It is purple quartz, tough and affordable, but it fades in strong sun and is often synthetic. Here is what to know.
- [Zodiac Gemstones: Birthstones, Rashi Stones and How Jyotish Really Chooses](https://ayu4.com/how-to-buy-gemstones-for-zodiac-signs/): Western birthstones and Indian rashi stones are different lists. Here are both, why Jyotish uses the whole chart, and what to verify before buying.
- [Which Hand Should You Wear a Crystal Bracelet On? Left, Right and What Matters](https://ayu4.com/which-hand-to-wear-crystal-bracelet/): The popular 'left receives, right gives' rule, where it comes from, what Indian practice says, and why comfort matters more than the side.
- [How to Clean a Crystal Bracelet Without Damaging the Stones or the Cord](https://ayu4.com/how-to-clean-natural-crystal-bracelet/): A dry cloth first, a damp one if needed, and never a soak. Why elastic and porous stones fail, and how cleaning differs from ritual cleansing.
- [How to Design a Custom Crystal Bracelet: Stones, Pattern, Clasp and Fit](https://ayu4.com/how-to-design-custom-crystal-bracelet/): Measure, then choose bead size, two or three stones, a pattern that repeats, and a finish. A step-by-step guide that works with any builder.
- [Where to Buy Natural Crystal Bracelets in India: Questions That Work With Any Seller](https://ayu4.com/where-to-buy-natural-crystal-bracelets-india/): What 'natural' should mean, what a good product page shows, what a lab report adds, paying safely and what to do if the bracelet is not as described.
- [Best Crystals for Beginners: Five Easy, Affordable First Stones](https://ayu4.com/best-crystals-for-beginners/): Five stones that are easy to find, hard-wearing and honestly sold: what each one is, what tradition says about it, and how to choose your first.
- [Do Healing Crystals Really Work? What Research Shows, and Why People Feel Them](https://ayu4.com/do-healing-crystals-really-work/): The honest answer, the one well-known experiment, why people still feel something, and what a lab certificate does and does not prove.
- [How to Energise a Crystal Bracelet: Simple Rituals That Do Not Damage It](https://ayu4.com/how-to-energize-crystal-bracelet/): What 'energising' means, a simple ritual with intention, how Indian practice does it, and the methods that quietly damage stones and cords.
- [Crystal Healing for Beginners: Rough Stones, Tumbled Stones and Bracelets](https://ayu4.com/crystal-healing-rough-gemstones-bracelets-guide/): Where crystal healing comes from, what it can and cannot do, and how rough stones, tumbled stones and bracelets differ when you buy them.

## Rudraksha
Mukhi, origin, X-ray reports, malas, wearing.

- [GemKrishna Rudraksha Reviews: What Public Reviews Say, and How to Verify It Yourself](https://ayu4.com/gemkrishna-reviews-rudraksha-authenticity/): A dated summary of GemKrishna's public reviews, including the complaints, what we could not find, and how to check its lab reports yourself rather than trusting anyone's word.
- [Rudraksha Shops in Delhi and Near You: How to Judge Any Local Shop](https://ayu4.com/rudraksha-shop-delhi-near-me/): We do not list shops we cannot verify. Instead: where Rudraksha is usually sold, a checklist that works in any shop in Delhi or your town, and how to test a bead you bought.
- [Buying Rudraksha Online: The Questions Buyers Ask, Seller Reviews and Complaints](https://ayu4.com/rudraksha-buying-questions-reviews-complaints/): Is this seller legit? Is my bead real? Why so cheap? The questions buyers keep asking in forums, answered, plus how to read reviews and where complaints go.
- [1 Mukhi Rudraksha: Round vs Half-Moon, Fakes, and Buying a Certified Bead](https://ayu4.com/1-mukhi-rudraksha-guide/): The rarest and most faked Rudraksha: the round and half-moon kinds, how fakes are made, and why a certified, individually X-rayed bead is the only safe purchase.
- [6 Mukhi Rudraksha: Meaning, Who Can Wear It, Sizes and Buying an Original Bead](https://ayu4.com/6-mukhi-rudraksha-guide/): Kartikeya's bead, popular with students and as a second bead after five mukhi: its meaning, sizes, the one common fake, and buying it with a report.
- [How to Choose a Rudraksha Seller: Ten Checks Before You Pay](https://ayu4.com/how-to-choose-rudraksha-seller/): Ten things a trustworthy Rudraksha seller does, the warning signs that should make you walk away, and how AYU4 assessed GemKrishna's public terms against the same list.
- [Ordering Rudraksha Online: What to Ask, Paying Safely, Reports and Returns](https://ayu4.com/rudraksha-ordering-online-reports-refunds/): A checklist that works with any seller: what to ask before you pay, how to pay safely, which report you should get, how returns and refunds differ, what to check on delivery and where to go if something goes wrong.
- [Rudraksha Malas, Bracelets and Kanthas: How to Choose or Design One](https://ayu4.com/custom-rudraksha-mala-bracelet-kantha/): A practical guide to the three ways Rudraksha is worn or used: the japa mala for counting, the bracelet, and the kantha necklace, including Siddh and Indra malas and what to check before you order a custom piece.
- [Rudraksha Quality and Price: What “AAA” and ₹15 Beads Really Mean](https://ayu4.com/rudraksha-quality-price-guide/): Why a Rudraksha can cost ₹15 or several lakh, what grade labels such as AAA actually tell you, and how to compare two beads on evidence rather than adjectives.
- [Rudraksha Types, Origins and Sizes: A Buyer's Reference](https://ayu4.com/rudraksha-types-origins-sizes/): One reference for every Rudraksha type on the market: what the mukhi count means, how Nepal, Java and Indian beads differ, how size is measured and what each typically costs.
- [How to Energise a Rudraksha at Home: Meaning, Simple Puja and Care](https://ayu4.com/how-energise-rudraksha/): What 'energising' means, a short home puja with mantra, what paid energisation services do, and how to clean and oil a bead safely.
- [5 Mukhi Rudraksha: Meaning, Who Can Wear It, Sizes and How to Buy](https://ayu4.com/5-mukhi-rudraksha-benefits-guide/): The commonest and most traditional bead: its meaning, who may wear it, Nepal and Java sizes, care, and an honest word on benefits.
- [Which Mukhi Rudraksha Should I Wear? A Calm, Practical Way to Choose](https://ayu4.com/which-mukhi-rudraksha-choose/): Five mukhi is the usual first bead. When to choose another, how tradition and astrology decide, and why rarer is not better.
- [Rudraksha Mukhi Chart: Deities and Planets of 1 to 21 Mukhi](https://ayu4.com/rudraksha-mukhi-ruling-deities/): Every mukhi from 1 to 21 with its deity and planet, where the lists come from, why they disagree, and how rare each bead really is.
- [When and How to Wear Rudraksha: Best Day, Mantra, Sleeping, Bathing and Rules](https://ayu4.com/when-best-day-wear-rudraksha/): The traditional day to start, a simple first-wearing ritual, what customs say about sleep, bathing and other times, and daily care.
- [Rudraksha Bead Size Guide: Bracelets, Malas, Kanthas and Collector Beads](https://ayu4.com/rudraksha-bracelet-bead-size/): Which size suits a japa mala, a bracelet, a kantha or a single bead, how size is measured, how many beads fit, and what makes big beads costly.
- [Rudraksha X-Ray Test Explained: What the Image Shows and What It Cannot](https://ayu4.com/rudraksha-xray-test-explained/): How an X-ray sees inside a bead, why compartments usually match mukhis, how carving and joins show, and what no image can prove.
- [How to Verify a Rudraksha Lab Report Online and Resolve Mismatches](https://ayu4.com/verify-rudraksha-lab-report-online/): Find the right number, check it on the lab's own site, match the record to your bead, and what to do when something does not match.
- [How to Read a Rudraksha Lab Report: Fields, Report Types and 'Government-Certified' Claims](https://ayu4.com/read-rudraksha-lab-report/): Every field on a Rudraksha report, individual versus batch and strand reports, when a report is worth paying for, and 'government-certified' claims.
- [Is the Rudraksha Water Test Reliable? Sinking, Floating and Better Checks](https://ayu4.com/rudraksha-water-test-reliable/): Real beads can float and fakes can sink. Why the water test misleads, what makes a bead sink, and the checks that actually work.
- [Rudraksha Buying Checklist: 12 Things to Check Before You Pay](https://ayu4.com/rudraksha-buying-checklist/): Twelve checks for any Rudraksha purchase, from mukhi and size to report scope, payment and returns, each linked to a fuller guide.
- [Japa Mala Beads: Why 108, and When to Use 54 or 27](https://ayu4.com/japa-mala-27-54-108-beads/): Why 108 is the standard count, what 54 and 27-bead malas are for, which mukhi beads make a mala, and how to count rounds.
- [How to Check if a Rudraksha Is Real: Mukhi Lines, Carving, Joins and Lab Tests](https://ayu4.com/how-to-check-real-rudraksha/): What natural mukhi lines look like, how carving, joining and filling are spotted, why home tests fail, and when you need a lab.

## Mindfulness
Meditation, japa, breath, Reiki in context.

- [Can Meditation Be Harmful? Side Effects and When to Be Careful](https://ayu4.com/meditation-side-effects-when-to-be-careful/): Most people find meditation calming. A minority have frightening or lasting difficulties, especially on intensive retreats. Here is what is known, and how to practise safely.
- [Trataka: Candle-Gazing Meditation, How to Do It Safely](https://ayu4.com/trataka-candle-gazing-meditation/): Trataka is a concentration practice: gazing steadily at a small point, usually a flame, then holding its image with the eyes closed. Here is how to do it without straining the eyes.
- [Yoga Nidra: What It Is, a 20-Minute Practice, and What Studies Show](https://ayu4.com/yoga-nidra-guide/): A guided rest, lying down, between waking and sleep. Here is how a session works, and what studies show.
- [Pranayama for Beginners: Five Breathing Practices and Who Should Be Careful](https://ayu4.com/pranayama-breathing-guide/): Pranayama, breath control, is one of the eight limbs of yoga. Slow, gentle breathing is safe for almost everyone; forceful techniques are not. Here is where to begin.
- [Japa Meditation: How to Chant With a Mala, Step by Step](https://ayu4.com/japa-meditation-how-to-use-mala/): Japa is the repetition of a mantra, counted on a string of beads. It is one of the oldest and simplest forms of meditation in India. Here is how to do it.
- [How to Meditate for Five Minutes: A Simple Daily Practice for Beginners](https://ayu4.com/how-to-meditate-for-five-minutes/): A minute-by-minute practice, what to do when the mind wanders (it will), how to make it a habit, and what research shows about short sessions.
- [What Is Reiki Healing? Origins, a Session, Evidence and Questions to Ask](https://ayu4.com/what-is-reiki-healing-beginners/): Where Reiki comes from, what happens in a session, what research has found, and the questions to ask a practitioner before you book.

## Hindi (हिन्दी)

- [रुद्राक्ष कब और कैसे पहनें? शुभ दिन, मंत्र, सोते और नहाते समय के नियम](https://ayu4.com/rudraksha-kab-kis-din-pehne/)
- [रुद्राक्ष की लैब रिपोर्ट ऑनलाइन कैसे चेक करें, और गड़बड़ी हो तो क्या करें](https://ayu4.com/rudraksha-lab-report-kaise-check-kare/)
- [असली रुद्राक्ष कहाँ से खरीदें? विक्रेता चुनने की दस जाँचें](https://ayu4.com/asli-rudraksha-kahan-se-kharide/)
- [असली रुद्राक्ष कैसे पहचानें? मुखी रेखाएँ, नक्काशी, जोड़ और लैब जाँच](https://ayu4.com/asli-rudraksha-kaise-pehchane/)

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