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Skin concern

Serum for oily skin

Oily skin does well with two water-based serums: one to help balance the look of shine, and one to hydrate without weight. Niacinamide covers the first. A lightweight hydrating serum covers the second, so you can skip heavy creams without leaving skin dehydrated.

Where the shine comes from

Oil production is set largely by genetics and hormones, and it rises with heat and humidity. It concentrates in the T-zone, where oil glands are most dense. Many people with oily skin respond by washing more often with stronger cleansers. That leaves skin feeling tight and dehydrated while the surface still looks shiny. Oily and dehydrated at the same time is common.

Niacinamide for visible shine

The Niacinamide Vitamin Boost uses niacinamide, a form of vitamin B3, to help reduce the look of excess shine and enlarged pores. 3-O-ethyl ascorbic acid, a stable form of vitamin C, supports a more even-looking tone, while panthenol and glycerin keep skin comfortable. It suits oily, combination and blemish-prone skin. One step, used daily, keeps the routine short.

Oily skin still needs water

Oil and water are different things. Skin can have plenty of one and too little of the other. The Hydration Serum adds water-binding hydration, not oil, through glycerin and an antioxidant-rich Cassia obtusifolia seed extract. It is a calm botanical layer that lets you use a thinner moisturizer, or a gel, while skin stays comfortable and balanced through the day.

A routine that stays light

Layer thin to thick: Hydration Serum first, niacinamide second, then a gel moisturizer and SPF. Skin tends to feel more balanced within days. The look of shine and pores changes over weeks of daily use. Blotting papers at midday are fine. A second wash with a strong cleanser usually is not.

Your serums.

Niacinamide Vitamin Boost. Niacinamide and a stable form of vitamin C to help balance the look of shine and pores.

Hydration Serum. A calm glycerin and Cassia seed baseline that keeps oily skin comfortable without a heavy cream.

03 Niacinamide Vitamin Boost by piani.

Niacinamide and vitamin C serum that targets dullness, uneven tone, and dehydration in one step.

Brighten & Refine
02 Hydration Serum by piani.

Botanical daily serum with Cassia seed extract and glycerin for soft, balanced, comfortable skin.

Comfort & Balance

Routine

Morning and evening.

Morning

  1. Gentle gel cleanser
  2. Hydration Serum, 2–4 drops
  3. Niacinamide Vitamin Boost, 3–5 drops
  4. Gel moisturizer
  5. SPF

Evening

  1. Cleanse to remove SPF and oil
  2. Hydration Serum, 2–4 drops
  3. Gel moisturizer

Serum after cleansing, before moisturizer. Thin to thick. SPF every morning.

Questions

Common questions.

Should you use a serum if you have oily skin?

Yes. Water-based serums are often the most comfortable format for oily skin because they hydrate and deliver actives without the weight of a cream. Choose one for your main concern, such as niacinamide for shine and pores, and keep the rest of the routine light.

Is hyaluronic acid good for oily skin?

Yes. Hyaluronic acid and its salt form, sodium hyaluronate, hold water, not oil, so they hydrate without adding greasiness. Glycerin works the same way, which is why the Hydration Serum suits oily skin too. Either makes it easier to use a lighter moisturizer without feeling tight.

Will a serum make my skin look greasier?

A water-based serum should not. Use the recommended number of drops, give each layer a moment to settle, and pair it with a gel moisturizer. If skin looks greasy, it is usually the moisturizer or too many layers, not the serum itself.

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