LaunchJul 28

The Strand

The Strand

Plain, sourced answers about gray hair: why it happens, how people cover it, and how to care for it. Every guide and article, newest first.

Prefer to read by topic? Browse the three guides.

A single hair strand with clear bands of silver and brown along its length, on a black background.

How Long Growing Out Gray Hair Takes, by Hair Length

Scalp hair grows 4 to 6 inches a year, so growing out dyed hair takes 2 to 3 months per inch. See the timeline by length and ways to shorten the wait.

· 5 min read

A single hair strand that is dark at the root, white in the middle, then dark again toward the tip, on black.

Can Gray Hair Ever Turn Back to Its Natural Color?

Gray hair rarely regains its color. See what a 2021 study of human hairs found, which medicines have darkened gray hair, and why no treatment is proven yet.

· 5 min read

A single hair strand, dark at one end and pure silver at the other, floating diagonally on a black background.

Why Hair Turns Gray

Hair turns gray when pigment cells in each follicle stop adding melanin. Learn what sets the timing, whether you can slow it, and whether color can return.

· 12 min read

A soft wave of silver hair strands flowing across a black background.

Caring for Gray Hair

What changes when hair turns gray, why it can turn yellow, and how to wash, protect, style and grow out gray hair, based on dermatology and hair research.

· 11 min read

A single silver hair strand curled into the shape of a question mark on a black background.

Common Gray Hair Myths Checked Against the Research

Does plucking make more gray hair grow? Can hair turn white overnight? We check eight common beliefs about gray hair against studies and dermatology sources.

· 6 min read

A single clear droplet of liquid resting on a matte black surface, reflecting a thin cyan rim light.

Hair Dye Allergies and Patch Tests

What causes hair dye allergy, which symptoms to watch for and when, who is most at risk, and how home skin tests and dermatologist patch tests work.

· 7 min read

Tiny dark pigment granules scattered inside a translucent hair fiber, seen through a microscope against black.

How Hair Gets Its Color From Melanin and Pigment Cells

Hair color comes from melanin made in the hair bulb. Learn the two types of melanin, why color is added only while a hair grows, and what this means for gray.

· 7 min read

A neat coil of dark hair strands beside a loose coil of silver strands on a black background.

How Much Covering Gray Hair Costs

The factors that set the cost and time of covering gray hair at a salon or at home, from how often roots need color to technique, shade and hair length.

· 6 min read

Glossy silver hair strands curved in a smooth S shape on a black background.

How to Style Gray Hair for Shine and Control

An editor's guide to styling gray hair, from choosing a cut that suits its texture to getting shine back, using less heat and picking the right products.

· 6 min read

One silver hair strand with its small root bulb visible at the end, isolated on a black background.

Does Plucking a Gray Hair Make More Grow Back?

Plucking one gray hair does not make more grow. Learn why each follicle grows only one hair, what grows back after plucking, and what dermatologists advise.

· 5 min read

A few dark hair strands with a narrow, even band of white at the root end, on a black background.

How Often to Touch Up Gray Roots and What Sets the Timing

Permanent color usually needs root touch-ups every few weeks. See how hair growth, color contrast and dye type set the right schedule for your gray roots.

· 5 min read

White hair strands, a few with a light yellow tint, under cool light on a black background.

Why Gray Hair Turns Yellow and What You Can Do About It

Research links yellow gray hair to the breakdown of a protein building block, and heat makes it worse. Here is what studies found and what helps.

· 5 min read

A single silver hair strand glowing faintly from within, floating in black space.

Why We Are Building LIUMIQ

Hair loses its color slowly, so we think the time to act is while the color is still there. What LIUMIQ is exploring, what we do not claim, and why.

· 3 min read

A single hair strand pulled tight between two points, catching a sharp line of cyan light against black.

Does Stress Cause Gray Hair? What the Research Shows

A 2020 mouse study and a 2021 study of human hairs link stress to graying. See what each study found, how the effect works, and what is still unknown.

· 7 min read

One long silver hair strand that deepens in tone along its length in many soft steps, on a black background.

Gradual Hair Color Explained

What gradual or progressive hair color means, how the older metal-salt dyes worked, why the FDA repealed lead acetate, and which ingredients are still approved.

· 7 min read

Fine silver and soft brown hair strands woven together in a loose braid on a black background.

Gray Blending and Lowlights

How gray blending, lowlights and highlights soften gray instead of hiding it, what they do to the line at the roots, and what to ask before a salon visit.

· 6 min read

Silver hair strands lit by a single warm shaft of light cutting across a black background, with dust in the beam.

How the Sun Affects Gray Hair and How to Protect It

Why gray hair is more open to sun damage, what UV light does to hair proteins and color, and simple ways to protect gray hair outdoors and in pools.

· 6 min read

A single hair strand, silver for the first third from its root and dark brown for the rest, on a black background.

How to Grow Out Gray Hair, Stage by Stage

How growing out dyed hair to natural gray works, how long each stage takes at the rate hair grows, and the options that make the root line less sharp.

· 6 min read

Three hair strands lying parallel on black, each a different depth of brown, one still white near the root.

Permanent, Demi-Permanent and Semi-Permanent Hair Dye

How permanent, demi-permanent and semi-permanent hair dyes work, how long each one lasts, and how much gray each can cover, based on dermatology reviews.

· 7 min read

The root end of a few dark hair strands showing a short white section near the base, sharply lit against black.

Root Touch-Up Products for Gray Hair

How root sprays, powders, sticks and wands hide gray regrowth, how long they last, how root kits differ, and the safety steps for each type of product.

· 6 min read

Hair strands arranged side by side in a gradient from white on the left to deep brown on the right, on black.

Ways to Cover Gray Hair

Compare the main ways to cover gray hair, from permanent and demi-permanent dye to gradual color, blending, root touch-ups and going natural.

· 12 min read

Two hair strands, one dark and one silver, twisted around each other like a double helix on a black background.

What Genetics Can and Cannot Tell You About Gray Hair

Graying runs in families, but known genes explain only a small part of it. Learn what the IRF4 study found and why age predicts graying better than DNA.

· 6 min read

A loose bundle of dark hair strands with three white strands running through it, on a black background.

When Gray Hair Starts and What Counts as Premature

Most people get their first gray hairs in their 30s or 40s. See how the timing differs by ancestry and sex, and what doctors count as premature graying.

· 6 min read

Two hair strands side by side on a black background, one smooth and dark, one silver.

Why Gray Hair Feels Different From Your Old Hair

Many people say gray hair feels coarser and drier. Here is what fiber studies measured, what changes with age, and what it means for daily care.

· 6 min read

White hair strands with a faint warm yellow cast on one side and a cool violet cast on the other, on black.

Yellowing in Gray Hair and How Purple Shampoo Works

Why gray and white hair can turn yellow, what heat and light do to it, and how purple and blue toning shampoos cancel the yellow, with their limits.

· 6 min read

Be there before the first bottle.

LIUMIQ is an early-stage concept for helping hair keep its natural color for longer. It is not for sale yet. Join the waitlist to follow the work.

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