Education Center

What Are Humectants? Glycerin, Honey, and Moisture Magnets

Jul 26, 2026Her•Yang

Humectants like glycerin, honey, and aloe pull water into your hair. Powerful in the right conditions — tricky in very dry or very humid weather.

What Are Occlusive Oils? How Sealing Locks In Moisture

Jul 26, 2026Her•Yang

Occlusive oils form a seal over the hair strand that slows moisture loss. They don't moisturize by themselves — they lock in the water you apply first.

What Is Clarifying Shampoo? When (and How Often) to Use It

Jul 26, 2026Her•Yang

Clarifying shampoo is a deep-cleansing wash that removes buildup regular shampoo leaves behind. Used right, it's a monthly reset — not an everyday cleanser.

What Are Protective Styles? Benefits, Limits, and Best Practices

Jul 26, 2026Her•Yang

Protective styles tuck your ends away and reduce daily manipulation — braids, twists, buns, wigs, and locs. Here's what they can and can't do for your hair.

What Is the Scalp Barrier? (And How to Protect It)

Jul 26, 2026Her•Yang

Your scalp barrier is the protective outer layer of scalp skin that holds moisture in and keeps irritants out. When it's damaged, you feel it: itching, flaking, sensitivity.

What Is a Healthy Scalp? Signs, Symptoms, and Daily Habits

Jul 26, 2026Her•Yang

A healthy scalp is balanced skin: no flaking, itching, tightness, or buildup. It's the soil your hair grows from — here's how to read yours.

What Is Length Retention? The Real Secret to Longer Hair

Jul 26, 2026Her•Yang

Your hair is always growing — about half an inch a month. Length retention is keeping that growth instead of losing it to breakage.

What Is Traction Alopecia? Early Signs Every Woman Should Know

Jul 26, 2026Her•Yang

Traction alopecia is hair loss caused by repeated pulling on the follicle — usually from tight styles. Caught early, it's reversible. Here's what to look for.

What Is Hair Breakage? Causes, Signs, and How to Stop It

Jul 26, 2026Her•Yang

Breakage is hair snapping mid-strand instead of shedding from the root. It's the #1 reason textured hair doesn't seem to grow — and it's fixable.

What Is Hair Shedding? Normal vs. Excessive Shedding Explained

Jul 26, 2026Her•Yang

Shedding 50–100 hairs a day is normal. Here's how to tell shedding from breakage, and when a shed means something more is going on.

What Is Hair Density? (And Why It's Not the Same as Thickness)

Jul 26, 2026Her•Yang

Hair density is how many strands grow per square inch of your scalp. Here's how it differs from strand thickness and what it means for styling and volume.

What Is Hair Porosity? A Plain-Language Guide

Jul 26, 2026Her•Yang

Hair porosity is your hair's ability to absorb and hold onto moisture. Learn how to test yours and why it changes everything about how you moisturize.