Beauty Journal

Four purple shampoo bottles arranged on a pale lavender surface

How Often Should You Use Purple Shampoo?

Purple shampoos do not share one schedule. Learn how to separate use frequency from contact time and compare four options for blonde and silver hair.

SkinMedica Retinol Complex 0.5, ZO Retinol Skin Brightener 0.25%, Marini Peptide Extreme, and StriVectin Peptide Plump Serum arranged as a combined retinol-and-peptide routine.

Beauty Journal

Can You Use Peptides and Retinol Together?

A practical guide to pairing peptides with retinol, understanding the difference in their evidence, and choosing a routine that respects skin tolerance.

TiZO Ultra Zinc, SkinMedica Mineral Shield, EltaMD UV Clear, and Supergoop Unseen sunscreens arranged for a mineral-versus-chemical sunscreen guide.

Beauty Journal

Mineral vs. Chemical Sunscreen: How to Choose

A practical comparison of mineral, organic-filter, and hybrid sunscreens, with current FDA context and four options for different skin and finish preferences.

Alastin Ultra Calm Cleansing Cream, HA Immerse Serum, Regenerating Skin Nectar, Revision CMT Post-Procedure Cream, and Alastin Silk Shield Mineral SPF arranged as a post-microneedling routine.

Beauty Journal

What to Use After Microneedling: A Day-by-Day Guide

A practical guide to simplifying skin care after professional microneedling, with provider-first timing, a five-product recovery routine, and clear signs that warrant medical advice.

Three dry-shampoo products, including a small pump mist, arranged on pale stone

Beauty Journal

Dry Shampoo vs. Washing Your Hair: When to Do Each

Learn how dry shampoo differs from washing, when a root refresh makes sense, and what to check before choosing a formula.

Beauty Journal

Niacinamide and Vitamin C Together, AM and PM

The niacinamide-cancels-out-vitamin-C myth, debunked with the actual pH science, plus a simple AM/PM layering plan and which serums to pair.

Four leave-in and heat-protection hair products on pale stone stands against a sage backdrop

Beauty Journal

Leave-In Conditioner vs. Heat Protectant: Do You Need Both?

Learn when a leave-in can also provide heat protection, how damp- and dry-hair directions differ, and which of four styling options fits your routine.

Four vitamin C serums arranged on a cool blue editorial backdrop

Beauty Journal

Vitamin C Serum Morning or Night - Which Works Better?

Should vitamin C serum go in your morning or nighttime routine? See the clearest timing, layering order, retinol split, and formula choices.

SkinMedica retinol products in 0.25%, 0.5%, and 1.0 strengths with EltaMD moisturizer and sunscreen on a warm ivory and plum background.

Beauty Journal

How to Start Retinol Without Peeling, From 0.25% Up

Most retinol peeling comes from the schedule, not the ingredient. Here is the concentration and frequency ramp dermatology research supports, plus the moisturizer sandwich technique.

Five skincare products arranged for a fall routine reset, from cleanser and serums to moisturizer and daily SPF

Beauty Journal

Fall Skincare Routine: What to Keep, Swap, or Pause

Your fall skincare routine may need an edit—not an overhaul. Use this symptom-led guide to decide what to keep, when to swap texture or frequency, and which optional actives to pause when skin feels irritated.