What Is PA in Sunscreen? PA+++ Meaning, SPF vs PA & the Best PA Rating for Indian Skin
Most people check SPF but ignore the PA+++ printed beside it. Yet SPF and PA protect against different types of sun damage. SPF mainly helps prevent UVB-related sunburn, while PA grades protection against UVA rays linked with tanning, dark spots, pigmentation, and premature ageing.
This Dermasys guide explains PA in simple words, compares PA+++ vs PA++++, and helps you choose the right broad-spectrum sunscreen for daily use in India.
Quick Answer: What Is PA in Sunscreen?
PA stands for Protection Grade of UVA. It shows how well a sunscreen protects against UVA rays. More plus signs mean a higher UVA protection category:
PA+ < PA++ < PA+++ < PA++++
- PA+++ means high UVA protection
- PA++++ means the highest UVA protection category
- SPF mainly measures UVB protection and helps prevent sunburn
- PA measures UVA protection and helps reduce tanning, pigmentation, and photoageing risk
- For daily use in India, choose broad-spectrum SPF 30 to 50 with PA+++ or PA++++
The PA system is based on the PPD (Persistent Pigment Darkening) test, measured with the ISO 24442 method.
What Does PA Mean in Sunscreen?
PA is a UVA-protection grading system developed by the Japan Cosmetic Industry Association (JCIA). It is widely used on sunscreens across Japan, Korea, and India.
The rating comes from the PPD test. In simple terms, it measures how much longer protected skin takes to darken after UVA exposure compared with unprotected skin. The result is expressed as a UVA Protection Factor (UVA-PF).
PA Rating Chart
| PA Rating | UVA-PF / PPD Value | UVA Protection | Best For |
|---|---|---|---|
| PA+ | 2 to less than 4 | Some protection | Very short sun exposure |
| PA++ | 4 to less than 8 | Moderate protection | Mostly indoor days |
| PA+++ | 8 to less than 16 | High protection | Daily use, office, commuting |
| PA++++ | 16 or higher | Highest category | Long outdoor hours, strong sun |
PA++++ was added to the PA scale by the Japan Cosmetic Industry Association in 2013.
Important: PA grades are laboratory categories, not hours of protection. Even PA++++ sunscreen needs to be reapplied.
What Does PA+++ Mean in Sunscreen?
PA+++ means high UVA protection, with a UVA-PF of 8 to less than 16. It is one of the most common ratings on Indian sunscreens and suits daily commuting, office wear, and regular city life. It does not last all day, so reapply every two hours outdoors.
What Does PA++++ Mean in Sunscreen?
PA++++ means a UVA-PF of 16 or higher. It is the highest category on the PA scale and a good pick for long outdoor hours, travel, and strong sun. If you have melasma or stubborn dark spots, ask a dermatologist for personalised advice.
SPF vs PA: What Is the Difference?
SPF and PA measure different types of UV protection. A sunscreen can have a high SPF but lower UVA protection, so check both.
| Feature | SPF | PA |
|---|---|---|
| Full form | Sun Protection Factor | Protection Grade of UVA |
| Protects against | Mainly UVB rays | UVA rays |
| Helps prevent | Sunburn and redness | Tanning, dark spots, premature ageing |
| Common labels | SPF 30, SPF 50, SPF 50+ | PA+++, PA++++ |
| Daily recommendation | SPF 30 or higher | PA+++ or PA++++ |
SPF 15 blocks about 93% of UVB rays, SPF 30 about 97%, and SPF 50 about 98%. After SPF 30, the difference gets smaller, so generous application and reapplication matter more than chasing a very high SPF.
Is SPF or PA More Important?
Both matter. SPF 50 does not automatically mean PA++++, and a high PA grade does not replace SPF. Look for:
- Broad-spectrum protection
- SPF 30 or higher
- PA+++ or PA++++
- Water resistance if you sweat or swim
The American Academy of Dermatology recommends broad-spectrum, water-resistant sunscreen with SPF 30 or higher.
What Is Broad Spectrum Sunscreen?
Broad spectrum means protection against both UVA and UVB rays. UVB mainly causes sunburn, while UVA contributes to tanning, dark spots, wrinkles, and loss of firmness. A broad-spectrum label tells you both are covered, but it does not grade how strong the UVA protection is. That is where the PA rating helps.
PA+++ vs PA++++: Which Is Better?
PA++++ is a higher UVA category than PA+++, but PA+++ is already high protection and works well for most daily routines.
Choose PA+++ If You:
- Commute or work mostly indoors
- Want a lightweight sunscreen you will reapply comfortably
- Have oily, combination, or acne-prone skin
- Need reliable everyday UVA and UVB protection
Choose PA++++ If You:
- Spend long hours outdoors, driving, or travelling
- Live in a high-UV city
- Want the highest UVA grade available on the label
- Have pigmentation concerns, and check with a dermatologist for melasma
SPF 50 PA++++ vs SPF 30 PA+++
SPF 50 PA++++ gives a bigger safety margin, especially because many people apply less sunscreen than recommended. SPF 30 PA+++ is still a solid daily choice when applied generously and reapplied every two hours outdoors.
The PA++++ Label Has a Ceiling
PA++++ covers any UVA-PF of 16 or higher. So a sunscreen with PPD 16 and another with PPD 40 can carry the same PA++++ label.
Labs also test with a generous layer, while many people apply less. Treat PA as a helpful guide, not a guarantee of all-day protection. The PA grade also does not describe protection against visible light.
Why PA Matters for Indian Skin
There is no single PA grade decided by being Indian. Your sun exposure, skin concerns, and habits all matter. But several local factors make UVA protection worth prioritising:
- Strong UV exposure: Many Indian cities see high UV levels, especially in summer.
- UVA is present all year: It can pass through clouds and window glass.
- Common concerns: Tanning, dullness, acne marks, and uneven tone can look worse with sun exposure.
- Heat and humidity: Sweat and oil can reduce sunscreen performance, so texture and reapplication matter.
Can You Use PA+++ Sunscreen Indoors?
Yes. UVA can pass through window glass, so sunscreen helps if you sit near windows or drive in daylight. SPF 30 PA+++ can work for mostly indoor days. For window-side work or long daylight exposure, SPF 50 with PA+++ or PA++++ gives a bigger safety margin.
Does PA+++ Prevent Tanning Completely?
No. No sunscreen can fully prevent tanning, especially in direct, prolonged sun. PA+++ or PA++++ helps reduce UVA-related tanning when applied generously and reapplied on time. Apply 15 minutes before going out, reapply every two hours outdoors, and add a hat, sunglasses, and shade.
How UVA Protection Is Shown Around the World
| Region | UVA Label | What It Means |
|---|---|---|
| Japan, Korea, India | PA+ to PA++++ | Graded using PPD / UVA-PF |
| United States | Broad Spectrum | Pass or fail UVA protection test |
| European Union | UVA logo in a circle | UVA protection at least one-third of SPF |
| United Kingdom | Boots star rating | UVA protection compared with UVB |
If a sunscreen has no PA mark, it may still offer UVA protection. Check for “broad spectrum,” the EU UVA logo, or a Boots star rating.
Which PA Rating Do You Need?
| Your Routine | Recommended Sunscreen |
|---|---|
| Daily indoor or office use | SPF 30 to 50 with PA+++ |
| Outdoor, travel, or driving | SPF 50 with PA+++ or PA++++ |
| Summer or high-UV days | SPF 50 with PA++++ |
| Pigmentation-prone skin | SPF 50 PA++++, preferably tinted with iron oxides |
| Melasma-prone skin | Tinted broad-spectrum SPF 30+ with iron oxides, plus dermatologist guidance |
| Photosensitive skin or photosensitising medicines | Consult a dermatologist first |
Tinted sunscreens with iron oxides can offer extra protection against visible light, which may contribute to pigmentation in some people.
How to Choose the Right Sunscreen
Look for these five things on the label:
- Broad spectrum: Protects against UVA and UVB rays
- SPF 30 or higher: SPF 50 is useful for strong sun or outdoor days
- PA+++ or PA++++: Shows the UVA grade
- Right texture: Gel for oily skin, lotion or cream for dry skin, gel-cream or fluid for combination skin, and fragrance-free for sensitive skin
- Water resistance: Useful for sweating, swimming, or outdoor activity
Sunscreen Filters Explained
- Mineral filters: Zinc oxide and titanium dioxide
- Chemical UVA filters: Avobenzone, Tinosorb S, and Uvinul A Plus
- Iron oxides: Found in tinted sunscreens; help with visible light
No sunscreen is truly waterproof or sweatproof. Water-resistant labels usually mean 40 or 80 minutes in water, after which you must reapply.
How to Apply Sunscreen Correctly
- Cleanse your face and apply moisturiser if needed.
- Use about a quarter teaspoon for the face, or follow the two-finger rule.
- Cover your face, neck, and ears evenly.
- Apply about 15 minutes before going outside.
- Reapply every two hours outdoors.
- Reapply immediately after swimming, sweating, or towelling off.
- Add shade, protective clothing, a hat, and sunglasses.
Dermasys Sunscreens With SPF 50 PA+++
Dermasys offers sunscreens designed for daily UVA and UVB protection, lightweight comfort, and Indian weather.
Dermasys Multivitamin SPF 50 PA+++ Sunscreen Gel: A lightweight, fast-absorbing gel for everyday use.
Dermasys Pore Minimizing Priming Sunscreen SPF 50 PA+++: A sunscreen and makeup-prep hybrid for oily skin, visible pores, and mid-day shine.
Dermasys 10% Vitamin C Serum & SPF 50 PA+++ Sunscreen Combo: A two-step morning routine for dull skin, uneven tone, and daily protection.
Looking for a lightweight daily sunscreen?
Explore Dermasys SPF 50 PA+++ sunscreens for oily, combination, and everyday skin needs.
Shop the Dermasys Sunscreen Range
Common Sunscreen Myths
| Myth | Fact |
|---|---|
| SPF is enough. | SPF mainly covers UVB. You also need UVA protection through PA or broad-spectrum labelling. |
| PA+++ is too strong for daily use. | No. PA+++ is a normal, practical choice for everyday wear. |
| Only fair skin needs PA. | All skin tones need UVA protection. |
| Sunscreen is only for summer. | UVA is present all year and can pass through clouds and glass. |
| Makeup SPF replaces sunscreen. | Usually not, because makeup is often applied in a thinner layer. |
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FAQs
What is PA in sunscreen?
PA stands for Protection Grade of UVA. It shows how well a sunscreen protects against UVA rays, which are linked with tanning, dark spots and premature ageing. More plus signs mean a higher category, from PA+ to PA++++.
What does PA+++ mean in sunscreen?
PA+++ means high UVA protection, with a UVA protection factor (PPD) of 8 to less than 16. It suits daily commuting, office days and regular city life. It is a lab category, not hours of protection, so reapply every two hours outdoors.
What does PA++++ mean, and what is the highest PA rating?
PA++++ is the highest PA rating on sunscreen labels. It means a UVA protection factor of 16 or higher. Because the grade covers a range, two PA++++ sunscreens can have different measured scores.
PA+++ vs PA++++: which is better?
PA++++ is a higher UVA category, but PA+++ is already high protection. Choose PA+++ for daily indoor and commute use. Choose PA++++ for long outdoor hours, travel or strong sun. Neither stops tanning completely, so add shade, a hat and reapplication.
Is PA+++ enough for daily use in India?
Yes, for most daily routines. PA+++ gives high UVA protection when paired with broad-spectrum SPF 30 or higher, applied generously and reapplied every two hours outdoors. There is no single “Indian” PA grade, so match it to your exposure. For an everyday gel, Dermasys Multivitamin SPF 50 PA+++ Sunscreen Gel is a lightweight option.
What is the difference between SPF and PA?
SPF measures protection from UVB rays, which cause sunburn. PA measures protection from UVA rays, which contribute to tanning, dark spots and premature ageing. A high SPF does not replace PA, so choose a broad-spectrum sunscreen that carries both.
Is SPF 50 PA++++ better than SPF 30 PA+++?
SPF 50 PA++++ gives a bigger safety margin, because many people apply less sunscreen than needed. SPF 30 PA+++ is still a solid daily choice when applied generously and reapplied. PA++++ and SPF 50 measure different things, so look for both on the label.
Which PA+++ sunscreen is best for oily skin?
Look for a lightweight gel or fluid that is non-comedogenic, with broad-spectrum SPF 30 or higher and PA+++ or PA++++. Dermasys Pore Minimizing Priming Sunscreen SPF 50 PA+++ is made for oily skin and also works as a makeup-prep step.
Can I use vitamin C with sunscreen?
Yes. Many people apply a vitamin C serum in the morning and finish with sunscreen as the last skincare step. The Dermasys 10% Vitamin C Serum & SPF 50 PA+++ Sunscreen Combo gives a simple two-step morning routine. If your skin is sensitive, patch test first or ask a dermatologist.
Do I need sunscreen indoors or on cloudy days?
Yes, if you sit near windows, drive or step outside. UVA can pass through window glass and clouds. SPF 30 PA+++ can work for mostly indoor days, and SPF 50 gives a bigger margin for long daylight exposure.
Final Takeaway
PA matters as much as SPF. SPF mainly protects against sunburn-causing UVB rays, while PA grades protection against UVA rays linked with tanning, pigmentation, and premature ageing.
For daily use in India, choose a broad-spectrum sunscreen with SPF 30 to 50 and PA+++ or PA++++, apply it generously, and reapply every two hours outdoors. Explore the Dermasys Sunscreen Range to find a lightweight SPF 50 PA+++ option for your skin type.
