The HAAR Journal
Perspectives on scalp longevity, science, and modern living.
What Keratin Amino Acids Do for Your Hair
Keratin amino acids can condition the hair surface, but scalp health determines what grows next. Learn how to use them with precision in a modern routine.
Read MoreInsights & Articles
More from HAAR
Editorial5 min readHome Versus Salon Scalp Treatments Compared
Home versus salon scalp treatments serve different purposes. Learn when daily care is enough, when clinical assessment matters, and how to combine both.
Read More26 Oct 2026
Science5 min readWhat a Hair Growth Peptide Can Really Do
A hair growth peptide may support a healthier scalp environment, but results depend on the formula, follicle biology, and a personalized routine over time.
Read More21 Oct 2026
Editorial5 min readWhy Scalp Itching Persists and What It Signals
Learn why scalp itching persists, from barrier disruption to inflammation, and how adaptive, scalp-first care can restore lasting comfort and daily balance.
Read More18 Oct 2026
Editorial5 min readBiotin and Hair Health: What Actually Matters
Biotin supports normal nutrient metabolism, but it is not a universal hair-growth fix. Learn when it matters and why scalp health comes first, long-term.
Read More14 Oct 2026
Editorial5 min readA Postpartum Scalp Care Routine That Adapts
Build a postpartum scalp care routine that supports comfort, gentle cleansing, and healthy-looking regrowth through recovery and beyond with a measured approach.
Read More8 Oct 2026
Editorial5 min readWhat Supports Scalp Recovery After Frequent Coloring?
Scalp recovery after frequent coloring starts with barrier repair, gentler wash days, and a personalized plan that responds to your scalp's changing signals.
Read More7 Oct 2026
Editorial5 min readA Personalized Haircare Comparison That Matters
A personalized haircare comparison begins below the hair shaft: see how diagnostic-led, adaptive scalp care differs from fixed product routines over time.
Read More5 Oct 2026
Editorial5 min readScalp Booster vs. Minoxidil: Choosing the Right Path
Scalp booster vs. minoxidil: choosing the right path depends on your scalp, shedding pattern, tolerance, and goals for lasting hair density over time.
Read More30 Sept 2026
Science5 min readCan Saw Palmetto Help With Thinning Hair?
Considering saw palmetto for hair thinning? Learn what research supports, who should avoid it, and why scalp-led care remains essential for lasting results.
Read More24 Sept 2026
Science5 min readExosome Science and the Future of Scalp Care
Exosome science is reshaping scalp care. Learn what research shows, what remains unproven, and where personalized care belongs for long-term hair health.
Read More23 Sept 2026
Editorial5 min readScalp Care for Hair Thinning: What Changes First
Scalp care for hair thinning starts below the surface. Learn how inflammation, buildup, stress, and renewal shape a precise long-term routine each day.
Read More21 Sept 2026
Editorial5 min readPollution Effects (Including Haze) on Scalp Health Explained
Pollution effects on scalp health can disrupt comfort, balance, and growth conditions. Learn how precise daily care helps defend and restore the scalp.
Read More16 Sept 2026
Science5 min readWhat Are the Benefits of NMN? The Science Behind NMN, NAD+ and Cellular Health
What are the benefits of NMN? The science behind NMN, NAD+ and cellular health, including what research suggests, what remains unproven, scalp relevance.
Read More14 Sept 2026
Science5 min readScalp Ageing Treatment: Hair Density Science
Scalp ageing treatment: the science of preserving hair density examines follicle biology, early shifts, and personalized care that adapts over time.
Read More9 Sept 2026
Editorial5 min readHow to Stop Hair Loss by Treating the Scalp
Learning how to stop hair loss starts with a more precise question: what has changed in the biology around the follicle?
Read More7 Sept 2026