🔬 Resources & Tools

LED Light Therapy: Complete Beginner's Guide

Wavelengths explained, what each does, which devices have clinical backing, and how to build a protocol.

Tretinoin vs Retinol: What's Actually Different

Potency differences, how to start without irritation, and which telehealth services offer the cheapest tretinoin.

Microneedling at Home: Safe Depth & Technique

Which depths are safe, how to sanitize properly, best serums to use, and what to absolutely avoid.

Hair Loss: What Has Clinical Evidence (and What Doesn't)

Finasteride, minoxidil, laser caps, Nutrafol, biotin — ranked by actual evidence strength.

Teeth Whitening: What Actually Works

Only hydrogen peroxide whitens enamel. Here's what to buy, what to skip, and why LED-only kits are a waste.

IPL vs. Laser Hair Removal: Which Is Right for You?

True cost breakdown, skin tone safety chart, expected session counts, and top device comparison.

Before You Buy an LED Mask

5 questions to ask before spending $200–$400 on an LED mask. Power density, wavelengths, FDA clearance, and more.

• ✓ Does it have peer-reviewed clinical data?
• ✓ Is it FDA-cleared (not just "FDA registered")?
• ✓ Does it include both red AND near-infrared?
• ✓ Is the fit flexible (silicone) or rigid?
• ✓ What's the power density (mW/cm²)?

Before You Buy an IPL Device

The 5 questions that determine whether an IPL device will work — and be safe — for you specifically.

• ✓ What is your Fitzpatrick skin type? (I–IV = safe)
• ✓ Is your hair color dark enough? (dark brown/black only)
• ✓ Does the device have a skin tone sensor?
• ✓ How many flashes does it last? (300K+ is good)
• ✓ What's the window size? (bigger = faster treatment)

Before You Start Tretinoin

Starting tretinoin the right way makes the difference between a smooth transition and weeks of unnecessary irritation.

• ✓ Start at 0.025% — not 0.05% or 0.1%
• ✓ Apply to dry skin (wait 20 min after washing)
• ✓ Use pea-sized amount for whole face
• ✓ 2–3 nights/week for first month
• ✓ SPF 30+ every morning — non-negotiable

At-Home vs. Professional: 5-Year Cost Breakdown

IPL device ($350) vs. laser clinic sessions ($3,000–$8,000+) — the full math over 5 years across common treatment areas.

Prescription Skincare: Telehealth vs. Derm Visit

Curology ($30–50/mo) vs. dermatologist office visit ($200–400) — what you actually get for the price difference.

Hair Loss Treatment Cost Comparison

Finasteride + minoxidil vs. Nutrafol vs. laser cap vs. hair transplant — cost and evidence compared.