What SPF should I use daily?

Dermatologists recommend SPF 30 as the daily minimum — it blocks 97% of UVB rays — but SPF 50 (98% blockage) is recommended for outdoor activities, high-altitude exposure, or if you have hyperpigmentation or melasma. SPF above 50 offers diminishing returns. More important than SPF number is reapplication: any SPF must be reapplied every 2 hours of direct sun exposure. Chemical sunscreens absorb UV; mineral sunscreens (zinc oxide, titanium dioxide) physically reflect it — both are effective when applied correctly (1/4 teaspoon for the face).

What is the difference between chemical and mineral sunscreen?

Chemical sunscreens (avobenzone, octinoxate, octisalate, homosalate) absorb UV radiation and convert it to heat. They are lightweight, sheer, and invisible on all skin tones, but can cause irritation for sensitive or rosacea-prone skin and must be applied 15–30 minutes before sun exposure. Mineral sunscreens (zinc oxide, titanium dioxide) sit on the skin surface and physically deflect UV. They work immediately, are less irritating, reef-safe, and better for sensitive skin, but can leave a white cast — though modern micronized formulas have largely solved this.

Can I use the same sunscreen on my face and body?

Yes, but face-specific sunscreens are formulated to be non-comedogenic (won't clog pores), lighter in texture, and often include skincare actives (niacinamide, antioxidants). Body sunscreens prioritize large-area coverage at lower cost and are often thicker or greasier. For acne-prone skin or daily wear under makeup, stick with a face-specific formula. For outdoor activity where you're applying head-to-toe, a body sunscreen on the face is fine. Look for "broad spectrum" on all sunscreen labels — this confirms both UVA and UVB protection.

sunscreen

How to Choose Sunscreen: The Complete Buying Guide

Choosing sunscreen: mineral vs chemical, SPF number, reapplication, ingredients to avoid. Here's how to pick the right SPF for your skin and lifestyle.

Last updated April 13, 2026 · 5 min read · First published Apr 2026

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The short answer

Choose sunscreen based on: 1) SPF 30-50+ (higher for outdoor, 30+ minimum). 2) Mineral (zinc/titanium) for sensitive/pregnancy; chemical for elegant feel. 3) Broad-spectrum (UVA + UVB). 4) Formula for your skin: gel for oily, cream for dry, tinted for melasma. 5) Reapplication — every 2 hours outdoors. Derm favorites: EltaMD UV Clear, SkinCeuticals Physical Fusion, CeraVe Hydrating Mineral.

The 5 factors that matter

The short answer

Sunscreen selection factors: 1) SPF number (30-50+ ideal). 2) Mineral vs chemical filter. 3) Broad-spectrum (UVA + UVB). 4) Formula match to skin type. 5) Tinted or not (iron oxides for visible light). Match these to your lifestyle + skin type + concerns.

1. SPF number

The short answer

SPF numbers: SPF 15 blocks ~93% UVB. SPF 30 blocks ~97%. SPF 50 blocks ~98%. SPF 100 blocks ~99%. Diminishing returns beyond SPF 50, but higher SPF compensates for real-world under-application. Most dermatologists recommend minimum SPF 30 daily, SPF 50+ for outdoor/active days.

SPF ladder:

SPF 15: 93% UVB (insufficient for most)
SPF 30: 97% (minimum daily)
SPF 50: 98% (ideal daily)
SPF 50+: 98-99% (best for active lifestyle)

2. Mineral vs chemical

The short answer

Mineral (zinc oxide, titanium dioxide): physical blocker. Safer for pregnancy, sensitive skin, reef safe. Can leave white cast (tinted versions solve this). Chemical (avobenzone, octisalate, octinoxate): absorbs UV. More cosmetically elegant. Safety debate around certain filters (oxybenzone). Both effective; choose based on preference + skin.

Mineral advantages:

Pregnancy-safe
Reef-safe
Less systemic absorption
Immediate protection

Chemical advantages:

No white cast
Cosmetically elegant
Thinner application
Better for makeup wear

3. Broad-spectrum essential

The short answer

Broad-spectrum = protects against UVA (aging) + UVB (burning). Both damage skin. Modern sunscreens should be broad-spectrum; older formulas sometimes only covered UVB. Check label for “broad-spectrum” or PA+++ rating (Asian sunscreens). Non-broad-spectrum SPF is essentially missing protection.

Look for:

“Broad-spectrum” on US labels
PA+++/++++ on Asian labels
Avoid SPF without broad-spectrum claim

4. Match formula to skin type

The short answer

Sunscreen formula by skin type: Oily/acne-prone — gel or lightweight fluid (Beauty of Joseon, Supergoop Unseen). Dry — cream formulas (EltaMD UV Restore, SkinMedica Total Defense). Sensitive — 100% mineral (La Roche-Posay Anthelios Mineral). Combination — hybrid mineral-chemical (EltaMD UV Clear). Melasma-prone — tinted with iron oxides (SkinCeuticals Physical Fusion).

Top sunscreen picks by skin type

For most people (derm favorite)

Premium Beauty

EltaMD

UV Clear SPF 46

$41

Zinc + niacinamide hybrid.

Best for: Most skin types, daily wear

"The single most derm-recommended sunscreen."

Check price on Amazon →

For oily skin / invisible feel

Best value

Beauty of Joseon

Relief Sun SPF 50+

$18

Korean lightweight SPF.

Best for: Oily skin, makeup wearers, zero white cast

"The cult K-beauty sunscreen."

Check price on Amazon →

For sensitive/pregnancy

Derm favorite

La Roche-Posay

Anthelios Mineral SPF 50

$36

Pure mineral, pregnancy-safe.

Best for: Pregnancy, reactive skin, melasma

"The sensitive skin mineral standard."

Check price on Amazon →

For melasma (iron oxides)

Premium Beauty

SkinCeuticals

Physical Fusion UV Defense SPF 50

$40

Tinted mineral + iron oxides.

Best for: Melasma, hyperpigmentation

"The melasma-protective tinted SPF."

Check price on Amazon →

For active/outdoor lifestyle

Premium Beauty

EltaMD

UV Sport SPF 50

$29

Water-resistant 80 min.

Best for: Outdoor sports, beach, hiking

"The athletic sunscreen standard."

Check price on Amazon →

5. Reapplication rules

The short answer

Sunscreen reapplication: every 2 hours in sun, immediately after swimming/heavy sweating, after 80 minutes of water activity (water-resistant formulas). Desk workers indoor: once daily often enough (UVA still penetrates windows). Spray or powder formulas (Supergoop Play Mist, Colorescience Sunforgettable) practical for reapplication over makeup.

Reapplication:

Every 2 hours in direct sun
After swimming immediately
After heavy sweating (workouts)
Water-resistant 80 min labels = reapply after that

Ingredients to avoid in sunscreen

The short answer

Sunscreen ingredients to avoid: oxybenzone (some endocrine disruption concerns, reef-damaging), octinoxate (similar concerns, banned in Hawaii/Palau). Avoid if: pregnant, reef-safety priority, children. Still FDA-approved but many switch to alternatives. Mineral filters (zinc/titanium) avoid all these concerns.

Consider avoiding:

Oxybenzone
Octinoxate (in certain markets)

These are FDA-approved but have environmental + pregnancy concerns.

Frequently asked

Is SPF 100 worth it over SPF 50? +

Slightly better real-world protection due to typical under-application. SPF 100 compensates when you apply only 50% of recommended amount. For outdoor people, yes. Desk workers — SPF 30-50 is plenty.

Can I skip sunscreen in winter? +

No. UVA penetrates clouds + windows. Winter UV still damages skin. Daily SPF year-round.

Mineral vs chemical — which is better? +

Both effective. Mineral safer for sensitive skin, pregnancy. Chemical more cosmetically elegant. Personal preference after effectiveness.

How much sunscreen should I apply? +

1/4 teaspoon for face, 1 oz for body. Most people apply 25% of this — getting SPF 10 from SPF 50.

Does SPF in makeup count? +

Usually insufficient. SPF in foundation/primer tested at thick application; typical makeup use is too thin. Apply dedicated SPF underneath.

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Premium Beauty

More Premium Beauty picks

If money isn't the object, these are our Premium Beauty favorites.

SkinMedica

$295

TNS Advanced+ Serum

Dual-chamber growth factor + peptide serum. Actually worth the splurge.

Buy on Amazon →

SkinCeuticals

$182

C E Ferulic Vitamin C Serum

15% L-ascorbic + 1% vitamin E + 0.5% ferulic. The gold standard.

Buy on Amazon →

SkinCeuticals

$182

Phloretin CF Antioxidant Serum

For oilier skin — phloretin + vitamin C + ferulic acid combo.

Buy on Amazon →

Augustinus Bader

$290

The Cream

TFC8 tech. The one celebrities keep talking about.

Buy on Amazon →

EltaMD

$41

UV Clear Broad-Spectrum SPF 46

The derm favorite. Zinc + niacinamide, no white cast.

Buy on Amazon →

Supergoop!

$38

Unseen Sunscreen SPF 40

Goes on like a primer. Zero white cast, zero scent.

Buy on Amazon →

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