Capilia Longa: What It Is, Evidence and What to Check

Capilia Longa is a cosmetic extract made from cultured turmeric stem cells and used in scalp serums and some shampoos. This guide explains what the ingredient is, what the evidence does and does no...

Is Bone Broth Good for Hair Growth? An Honest Answer

Is bone broth good for hair growth, or is it collagen marketing? We look at what is really in a mug of broth, why collagen is the wrong protein for building keratin, and the short list of nutrients...

What Does DHT Do in the Body? Beyond Hair Loss

What does DHT do in the body beyond thinning hair? Dihydrotestosterone is a normal androgen with roles in development, body and facial hair, skin, the prostate and libido. This guide explains those...

Is Biotin Safe for Liver Health? What Evidence Says

Is biotin safe for liver health? For healthy adults, yes: biotin is water soluble and is not stored in the liver. The real caution is laboratory interference, where high doses can make thyroid, hor...

Is Baby Shampoo Sulfate Free? How to Check the Label

Is baby shampoo sulfate free? Some are and many are not, and no front-of-bottle claim tells you which. This guide explains what sulfates do, how to read a baby shampoo label, what tear free actuall...

Is Alopecia Permanent? What Depends on the Type

Is alopecia permanent? It depends entirely on which type you have. This guide separates alopecia areata, pattern hair loss, telogen effluvium and scarring alopecia, explains what a GP or dermatolog...

Derma Roller for Hair: What to Buy and How to Use It Safely

A derma roller for hair is a handheld barrel of fine needles used on the scalp once a week. This guide covers what to check before you buy one, safe needle lengths and frequency, what the research ...

0.25mm Derma Roller for Thinning Hair: An Honest Guide

Wondering whether a 0.25mm derma roller for thinning hair is worth it? The needles reach the outer skin, not the follicle, so the real benefit is helping a leave on scalp product absorb. Here is a ...

Is 0.25mm Derma Roller Effective? An Honest Answer

Is 0.25mm derma roller effective, or is it marketing? The short needle passes the skin barrier but stops well above the collagen and follicle layer, so it helps products absorb and does little else...

InnerX for Hair Supplements: What They Can and Cannot Do

InnerX for hair supplements sit in the ingestible half of hair care, and the category has a narrower job than the packaging suggests. Here is what the evidence supports, which nutrients are worth t...