Scalp & Strand 101
Evidence-based education on scalp health, hair loss, and what actually works, provided by Dr. Joyce Park, board-certified dermatologist and founder of Kerativ.

Dealing with thinning hair can feel frustrating and overwhelming. But I want to reassure you that you’ve come to the right place!

Diagnosed with PCOS and watching your part get wider? Scalp thinning is a real feature of PCOS, and it is less common than the facial and body hair most people associate with it. Dr. Park explains ...

Midlife hair loss is common and often dismissed. Dr. Park explains the other causes, the red flags, and how to get thinning properly evaluated.

Told your bloodwork was normal but still shedding? Ferritin measures your stored iron, and it falls long before a standard anemia panel goes abnormal. Dr. Park explains what number to ask for, and ...

Seen scalp massage recommended everywhere and wondering whether it works? Dr. Park goes through evidence found by the studies, and explains how to massage your scalp without breaking hair in the pr...

Most people shed more hair in the fall, because of a shift their follicles quietly made back in midsummer. Dr. Park explains the timeline, and how to tell a normal seasonal shed from something that...

Female pattern hair loss is a gradual, genetically driven thinning that shows up as a widening part and reduced density at the crown. Dr. Park breaks down what to look for and how to treat it.

This is a first look at our 24-week clinical study evaluating the Kerativ Redensify Treatment Serum.

Telogen effluvium is one of the most common causes of rapid hair loss, and it is almost always temporary. Here is how to support your scalp through it.

Your scalp is living skin, and that environment shapes your hair follicles. A dermatologist explains how barrier, oil and microbiome shape hair growth.

A thoughtfully formulated shampoo can improve the scalp environment and support overall follicle health, which may help promote stronger, more resilient hair over time.

Male pattern thinning affects roughly half of men by age 50. The sooner you act, the more you can preserve.

Hair Shedding on Ozempic, Wegovy, Zepbound, or Mounjaro? Here Is What Is Happening in GLP-1 Associated Hair Loss

Postpartum telogen effluvium is one of the most common things I see in new mothers. Create the best environment for your follicles to recover during and after the postpartum period.

The hair advice I give my patients that actually makes a difference.

As estrogen levels shift during perimenopause and drop further into menopause, many women notice their hair becoming finer. There are things you can do to help.

Here’s a guide to the ingredients and treatments with the strongest evidence for supporting fuller-looking hair.











