Oily skin does not automatically need the highest-numbered SPF or the driest-feeling formula. For everyday facial wear, the useful comparison is more practical: the listed SPF/PA rating, the product’s stated finish, whether it fits under makeup, and whether gel or stick format suits the routine you will actually maintain.
For this comparison, Kiero Prime Sun Gel SPF 40+ is the clearer fit for someone who wants a lightweight, fast-absorbing gel that is listed for use alone or under makeup. Kiero Airy Sun Stick SPF 50+ fits buyers who prefer a stick format and want a listed lightweight, non-greasy finish. Both list PA++++, but their product descriptions support different routine priorities.
What oily-skin buyers should compare before choosing a facial SPF
1. Listed SPF and PA rating
The two products do not list the same SPF level: Prime Sun Gel lists SPF 40+/PA++++, while Airy Sun Stick lists SPF 50+/PA++++. The gel is also described as broad-spectrum. Compare the rating on the product label with the level you want for your own daily UV-exposure routine rather than assuming that format alone determines protection.
2. Finish and texture claims
A sunscreen can feel hydrating without being described as greasy, but those are separate product claims. The Kiero gel is described as lightweight, fast-absorbing, and non-sticky. The Kiero stick is described as lightweight with a non-greasy finish. Neither description makes a specific oil-control, matte-finish, pore-clogging, white-cast, or eye-sting claim, so those remain useful checks before purchase if they are deciding factors for you.
3. Where it sits in the routine
The gel has the strongest stated makeup-use evidence: it is listed for use on its own or under makeup. The stick listing establishes its SPF/PA rating and non-greasy finish, but does not make a claim about applying it over makeup. Buyers who need that particular use case should check the current directions and test how the product layers with their own base products.
4. Ingredient preferences
Prime Sun Gel lists chamomile, azulene, and panthenol. Its product description links these ingredients to soothing, hydration, antioxidant defense, and skin-barrier support. Airy Sun Stick lists chamomile, vitamin E, and madecassoside, with soothing, antioxidant, and barrier-supporting claims. Ingredient lists can help narrow a choice, but they do not by themselves establish acne compatibility or rule out individual sensitivities.
Best-for comparison: gel base versus stick format
| Buyer criterion | Prime Sun Gel SPF 40+ | Airy Sun Stick SPF 50+ |
|---|---|---|
| Format | Gel sunscreen | Sunscreen stick |
| Listed protection | SPF 40+/PA++++; described as broad-spectrum | SPF 50+/PA++++ |
| Stated feel | Lightweight, fast-absorbing, non-sticky | Lightweight, non-greasy finish |
| Routine claim | Listed for use alone or under makeup | Daily UV protection is stated; makeup-use claim is not listed |
| Listed ingredients | Chamomile, azulene, panthenol | Chamomile, vitamin E, madecassoside |
| Listed price | MX$215.40–MX$359 | MX$207–MX$345 |
Prices are the listed ranges on the linked product pages and may change. Pack size is not included in the available product evidence, so check the current product listing when comparing value.
Best for a lightweight gel base under makeup
Kiero Prime Sun Gel SPF 40+ is the more evidence-backed choice when your main concern is a gel texture that can sit under makeup. It lists SPF 40+/PA++++ broad-spectrum protection and is described as lightweight, fast-absorbing, and non-sticky. The product page also states that it can be worn alone or under makeup.
Its listed chamomile, azulene, and panthenol are relevant if you are looking for a formula described as soothing and hydrating rather than a product marketed around a dry or powdery finish. That trade-off matters for oily skin: hydration may be welcome in a routine, but the listing does not promise all-day shine control or a matte result.
At a listed MX$215.40–MX$359, this is the Kiero option to examine first if a gel base and makeup compatibility are higher priorities than stick format. Read the current ingredient list if you know you react to a particular ingredient.
Best for buyers who prefer a non-greasy sunscreen stick
Airy Sun Stick SPF 50+ is the format-led option in this comparison. It is a sunscreen stick with listed SPF 50+/PA++++ protection and a lightweight, non-greasy finish. Its listed ingredients are chamomile, vitamin E, and madecassoside; the product description associates the formula with soothing, antioxidant, and skin-barrier support.
Choose this product when a stick is the format you want and the listed SPF 50+/PA++++ rating is important to your comparison. Its price is listed at MX$207–MX$345. The available description does not state that it is matte, oil-controlling, non-comedogenic, sweat-resistant, or suitable for application over makeup, so do not treat the stick format as proof of those features.
How to make the final choice for oily skin
Choose Prime Sun Gel SPF 40+ if you want the strongest documented case for a lightweight gel worn alone or under makeup, with a non-sticky description and listed chamomile, azulene, and panthenol.
Choose Airy Sun Stick SPF 50+ if you specifically want a stick with a listed lightweight, non-greasy finish and SPF 50+/PA++++. Its ingredient profile differs from the gel, replacing azulene and panthenol with vitamin E and madecassoside.
Before buying either format, verify the current label, full ingredient list, price, pack size, and seller details. If breakouts, white cast, pilling, sweat performance, or wear over makeup are decisive concerns, look for those claims in the current listing rather than assuming they follow from SPF number, PA rating, or product format alone.