Haarlem oil: Benefits for Joints and Detox, Dosage Guidelines, and Safety Risks
Haarlem oil—also called “Huile de Haarlem”—is a traditional preparation made from pine turpentine essential oil, elemental sulfur, and linseed (flaxseed) oil. Marketed for centuries...
Hadacol: What It Was, How It Was Used, Dosage Details, and Side Effects
Hadacol was one of America’s most famous mid-century “vitamin tonics.” Sold from the 1940s into the early 1950s, it promised relief for everything from...
Hafnia alvei for weight management: proven benefits, how to use it, dosage, and safety
Hafnia alvei is a Gram-negative bacterium originally known as a food-associated commensal. In the last decade, a specific strain—H. alvei HA4597—has drawn attention as...
Halodrol-50 facts and myths: what it is, why dosing is unsafe, health risks, and better options
Halodrol-50 is commonly marketed in bodybuilding circles as a fast-acting oral agent for muscle and strength. In reality, products sold under this name have...
Haritaki benefits for digestion and heart health: evidence, best dosage, and safety tips
Haritaki (Terminalia chebula) is a small, ridged fruit long valued in Ayurveda for digestion, metabolic balance, and resilience. Modern analyses show that haritaki concentrates...
Harmaline: MAO-A Inhibition, Potential Benefits, Dosage Recommendations, and Interaction Risks
Harmaline is a β-carboline alkaloid found most notably in Peganum harmala (Syrian rue) seeds and in several other plants traditionally used as dyes or...
Harmine: What It Is, Research-Backed Benefits, Dosage Ranges, and Contraindications
Harmine is a naturally occurring β-carboline alkaloid best known from two plants: the Syrian rue (Peganum harmala) and the ayahuasca vine (Banisteriopsis caapi). In...
Haronga: Health Benefits, How to Use It, Recommended Dosage, and Safety
Haronga—most often referring to the African tree Harungana madagascariensis—has a long record in traditional medicine from Madagascar to West and Central Africa. Healers use...
Harpagoside: Joint and Back Pain Relief, Mechanisms, Dosage Guidelines, and Risks
Harpagoside is an iridoid glycoside best known as the principal marker compound in devil’s claw (Harpagophytum procumbens and H. zeyheri), a desert plant traditionally...
Hartstongue: Evidence-Based Benefits, Properties, Uses, Dosage, and Side Effects
Hartstongue (Asplenium scolopendrium) is an evergreen fern best known for its strap-shaped fronds and shade-loving habit—but it also has a long history in European...
Harungana madagascariensis: Antibacterial Properties, Traditional Uses, Dosage Guidelines, and Side Effects
Harungana madagascariensis—sometimes called haronga or “tamarin” for its red sap—is a tropical African tree long used in traditional medicine. Modern lab studies suggest its...
Haskap berry: Cardiometabolic Support, Exercise Recovery, Dosage Guidelines, and Risks
Haskap berry (Lonicera caerulea L.), also called honeyberry or blue honeysuckle, is a cold-hardy fruit prized for its deep indigo color and unusually high...
Hawthorn extract: Heart Health Benefits, How It Works, Dosage Guidelines, and Safety
Hawthorn extract (from Crataegus species) is one of the most researched cardiovascular botanicals, valued for gentle support of heart function, blood vessel tone, and...
Heart’s ease: Uses for Seborrheic Skin, Soothing Teas, Dosage, and Precautions
Heart’s ease (Viola tricolor), also called wild pansy or Johnny jump-up, has a long history in European herbal practice for soothing angry skin, calming...
Heliotropin: Health Benefits, Fragrance Uses, Safe Dosage, and Side Effects
Heliotropin—better known to chemists as piperonal—is a sweet, powdery, almond-vanilla–like aroma compound that shows up in perfumes, flavored foods, and scented home products. It...
Hedge mustard: Voice Care Benefits, How to Choose and Use, Dosage, and Safety
Hedge mustard (Sisymbrium officinale) has a long folk reputation as the “singers’ plant” for soothing hoarseness and vocal fatigue. As a member of the...