Sunscreen for Indian skin: what actually matters

What SPF and PA actually measure

SPF is a sunburn test. The product is spread on skin at 2 mg/cm², the skin is given increasing doses of simulated sunlight, and the SPF is the dose that just causes redness with the sunscreen divided by the dose that does so without it. Sunburn is driven mainly by UVB, so SPF tells you mostly about UVB.

In theory, SPF 30 cuts the burning dose thirtyfold, which works out at about 97% of UVB filtered. SPF 50 filters slightly more. No sunscreen blocks all of it.

UVA is the larger share, about 95% of the UV that reaches your skin. It goes deeper, is a main driver of long-term skin ageing and causes the immediate darkening you see after time in the sun. Together with UVB, it also builds the slower tan that follows.

PA is the grade for UVA. It was developed in Japan and runs from PA+ to PA++++, the highest. It is based on how well a product prevents persistent pigment darkening, the browning that UVA causes.

The two numbers do not move together. In a 2026 study of 38 sunscreens labelled SPF 50 or 50+, sold across Europe, Latin America, Oceania and Asia, measured UVA protection ranged from 3.6 to 46.6, and about a third fell short of the EU recommendation that UVA protection be at least a third of the SPF. The study was run with researchers from L’Oréal and La Roche-Posay, which is worth knowing, but the spread is the point: a high SPF does not guarantee good UVA cover.

So look for SPF 30 or higher and broad-spectrum protection, as the American Academy of Dermatology advises, plus PA+++ or better. If tanning or pigmentation is your main worry, go for PA++++. All nine sunscreens we have reviewed are SPF 40 or higher, and seven carry PA++++.

The filters that matter

A sunscreen is only as good as its UV filters, and the ones on Indian labels fall into two groups. The newer ones, Tinosorb S and Tinosorb M, are broad-spectrum (Tinosorb S is notably stable in sunlight) and are often paired with Uvinul A Plus for UVA and Uvinul T 150 for UVB. The older trio of avobenzone, octinoxate and octocrylene still works but needs careful formulating, because avobenzone and octinoxate break down in sunlight. You will also find Mexoryl SX (a UVA filter), ensulizole and octisalate (both UVB filters) and Tinosorb A2B in some of the formulas we have reviewed. The strengths below are legal maximums in the EU, with the US limit where it differs; none of the nine ingredient lists we reviewed gives filter percentages.

The sunscreens we have reviewed, ranked

Every sunscreen we have reviewed, ranked by Isha’s rating, with the UV filters it carries and its price at MRP.

How much to apply, and when

The SPF on the label assumes 2 mg/cm². On average, people apply about a quarter of that, around 0.5 mg/cm², so they never get the number on the tube. With high-SPF products, protection falls away even faster than the amount does.

• Face: at least a teaspoon. The American Academy of Dermatology likens it to a strip along the length of your index and middle fingers, the “two-finger rule”.
• Don’t skip the edges: the neck, ears and temples are the areas most often missed.
• Body: about 30 ml, a shot glass, for skin not covered by clothing.
• A quick check: if one 50 g tube lasts you three months of daily use, you are applying well under the tested amount.
• Timing: make it the last step of your morning skincare, before makeup, and put it on before you go out. The AAD suggests about 15 minutes ahead.
• Long days outside: a second coat soon after you step out makes up for a thin first one.
• Reapplying outdoors: about every two hours, and straight after swimming, heavy sweating or towelling off. In an Indian summer, count heavy sweat as a reason to reapply.

The two-hour rule is for time outdoors. The Indian Sunscreen Forum points out that it exists mainly to make up for under-application and for sunscreen lost to water, sweat and rubbing. If you applied the full amount and nothing has taken it off, the forum does not consider reapplying necessary within eight hours.

Sunscreen is one layer of protection, not a licence to stay out longer. In the midday sun, shade, a hat and covering up come first.

Chemical, mineral or hybrid?

Chemical filters, also called organic filters, absorb UV and release it as heat. “Organic” here means carbon-based, not natural.

Mineral filters are zinc oxide and titanium dioxide. They are often described as a shield that bounces sunlight off the skin, but they also protect mainly by absorbing UV. What they reflect is visible light, and that is where the white cast comes from. Nano or micronised grades shrink the cast, but they also give up most of that visible-light protection.

Mineral filters are inert and rarely trigger allergic or photoallergic reactions. That is why dermatologists recommend them for sensitive skin. The Indian Sunscreen Forum also prefers them for children over six months and during pregnancy, and advises keeping babies under six months out of direct sun rather than putting sunscreen on them. The trade-offs are a white cast on medium and deeper skin, a thicker feel and often weaker water resistance.

Hybrids combine the two. Of the nine we have reviewed, five use chemical filters only and four are hybrids; none is mineral-only. Labels can mislead. La Shield’s “Mineral” gel contains octinoxate, Uvinul A Plus and Tinosorb S alongside titanium dioxide. Dr. Sheth’s lists zinc oxide last, after its preservatives and antioxidants, so it is likely a small amount.

For most people, the more useful distinction is between newer and older chemical filters. Avobenzone degrades in sunlight unless it is stabilised, for example with octocrylene, and octinoxate is also unstable. Tinosorb S stays stable after UV exposure. Tinosorb S and Tinosorb M are large molecules that sit on top of the skin, and very little Tinosorb M was absorbed in lab tests.

In US FDA studies, avobenzone, octocrylene and Mexoryl SX reached the bloodstream above the FDA’s 0.5 ng/mL threshold, and findings like these led the FDA to require further safety testing. Reviewers stress that the evidence calls for further study. It does not suggest that people should stop using sunscreen.

Sunscreen on Indian skin: white cast, tanning and pigmentation

White cast is a real reason people with medium and deeper skin give up on sunscreen: dermatologists writing on the 2026 US approval of Tinosorb S note that mineral residue remains a barrier to use for darker skin tones. Formulas built only on chemical filters avoid the problem, and our review of the Deconstruct gel, which has no mineral filter, notes no white cast.

Tanning is the skin’s response to UV. UVA causes the immediate darkening, and UVA and UVB together build the delayed tan. A high SPF alone will not prevent it. The PA grade matters, and so does using enough.

Visible light is the part most sunscreen advice leaves out. On darker skin, it causes pigmentation that is more intense and lasts longer than pigmentation from long-wave UVA, and the effect is most persistent in Fitzpatrick skin types IV to VI. Ordinary broad-spectrum sunscreens, including nano mineral ones, do not block visible light well. To do that, a sunscreen has to be visible on the skin. Tinted sunscreens manage it with iron oxides and pigment-grade titanium dioxide.

That matters most for melasma. Studies have found that broad-spectrum sunscreens with iron oxide improve melasma more than UV filters alone. The Indian Sunscreen Forum recommends SPF 30 or more with UVA, UVB and visible-light cover for melasma, applied generously and reapplied, indoors as well.

Post-inflammatory hyperpigmentation, the dark marks left after acne, is more common on darker skin, and both UV and visible light make it worse. Daily sunscreen is part of treating it, not an extra.

None of the nine sunscreens we have reviewed is tinted. If pigmentation is your main concern, use a well-rated sunscreen every day and look for a tinted one that lists iron oxides in a shade close to yours. Melasma that does not settle is worth taking to a dermatologist.

You do not need to spend more for good protection. Our three highest-rated sunscreens cost ₹375 to ₹445 at MRP for 50 g, while the most expensive one we have reviewed, La Shield at ₹850, rates lowest.