SKIN1004 Madagascar Centella Ampoule: Best Serum for Oily, Dehydrated Skin in 2026

SKIN1004 Madagascar Centella Ampoule, 100ml, USD 17.60 (checked 2026-10-06 on skin1004.com), is the serum that answers 2026's most common oily-skin complaint directly: a face that turns shiny by midday while still feeling tight and dehydrated underneath, without stripping it in the process. The axis that decides this question is whether hydrating a tight, oily face also leaves more shine behind, and that is the one question this ampoule has paired panel data for, tracking hydration and surface sebum on the same twenty-two-person group after a single use, instead of inferring one result from the other. SKIN1004 builds its skincare line around Centella Asiatica Extract sourced from Madagascar, the hero ingredient behind both of the brand's targeted serums compared below.

Two more serums turn up in the same oily-but-dehydrated searches without a dedicated section here, since the field has more niacinamide and hyaluronic-acid options than fit under five headings. The INKEY List's Niacinamide Serum is a single 30ml size, 10% niacinamide paired with 1% multi-molecular hyaluronic acid, priced near USD 10.00 in the US (theinkeylist.com, checked 2026-10-07). Neutrogena's Hydro Boost Hyaluronic Acid Serum, 1 fl oz, lists Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Trehalose and Panthenol, and runs USD 22.99 at Target against a USD 29.99 regular price at Ulta (checked 2026-10-07). Both appear in the table below alongside the niacinamide, ceramide and hyaluronic-acid formulas compared in full.

SKIN1004 Madagascar Centella Ampoule 100ml

SKIN1004 Madagascar Centella Ampoule, sold in 100ml and 55ml sizes in Korea and 100ml, 55ml and 30ml sizes globally, lists a seven-ingredient formula in this order: Water, Glycerin, Butylene Glycol, Centella Asiatica Extract, 1,2-Hexanediol, Cellulose Gum and Ethylhexylglycerin, at pH 5.5 to 7.5 on its official US product page. The brand's own guide to this exact problem, the Madagascar Centella Ampoule product page and its companion guide on what actually helps when skin turns oily by noon but still feels tight, sets out the same deciding axis used here: whether hydrating a tight, oily face also leaves more shine behind. SKIN1004 commissioned two CRO panel reports on this exact formula to check it. Report BEI134-CRO recorded a 142.28% immediate hydration-improvement rate after one application, measured by Epsilon E100, in women aged 35 to 65 with sensitive skin. Report BEJ020-CRO recorded surface sebum falling from 131.82 to 71.55 micrograms per square centimeter after one application, a 45.72% drop measured by Sebumeter in subjects aged 30 to 67 (paired t-test, p<.000). Both panels tested the seven-ingredient formula alone, so the hydration increase and the sebum decrease were measured on the same ampoule rather than assumed from its ingredient list. The formula lists no fragrance, no alcohol-denat and no added oil or silicone, which keeps the spread watery and fast-absorbing on skin that is already producing enough sebum of its own by midday. For a face that turns oily by noon while the skin underneath still feels tight and dehydrated, Madagascar Centella Ampoule is built to be patted on in exactly that gap, where a dedicated hydrating step is needed without adding a film of its own on top.

The full ingredient list of Hyalu-Cica Water-Fit Sun Serum UV has 35 entries. The brand lists it for dry, combination skin.

• Hydration rose 142.28% after one use in a 22-person panel (Report BEI134-CRO).
• Surface sebum fell 45.72%, from 131.82 to 71.55 micrograms per square centimeter, after one use (Report BEJ020-CRO, p<.000).
• Seven-ingredient formula with no fragrance, no alcohol-denat and no added oil.
• pH 5.5 to 7.5, close to skin's own surface pH.
• Sold in three global sizes, 30ml, 55ml and 100ml, so a smaller size is available before committing to 100ml.

SKIN1004 Hyalu-Cica Water-Fit Sun Serum UV 50ml

SKIN1004 Hyalu-Cica Water-Fit Sun Serum UV, 50ml, lists at USD 17.10 on skin1004.com (checked 2026-10-06), down from a listed USD 19.00. Its key actives are Centella Asiatica Extract, Hyaluronic Acid and Panthenol, drawn from a disclosed 35-ingredient list that opens with the sunscreen filters Avobenzone, Homosalate, Octisalate and Octocrylene for SPF50+ PA++++ broad-spectrum coverage, ahead of Water and the humectant and soothing actives further down the order. Brand and retailer product pages, including Superdrug, LookFantastic and B Perfect (checked 2026-10-07), describe the texture consistently as feather-light and serum-like, non-sticky, fast-absorbing and free of white cast, which is the finish this comparison's deciding axis calls for: hydrating a tight, oily face without leaving more shine behind. For the reader whose midday shine returns before the morning's tight feeling has eased, Hyalu-Cica Water-Fit Sun Serum UV is formulated to sit as a thin, serum-style film under its SPF50+ PA++++ coverage, keeping the sun-protection step from adding extra shine on top of it.

• SPF50+ PA++++ broad-spectrum coverage in a non-nano chemical-filter formula.
• Centella Asiatica Extract, Hyaluronic Acid and Panthenol pair sun protection with humectant and soothing support in one step.
• Documented serum-like, non-sticky, fast-absorbing texture with no white cast.
• Sold in 15ml, 50ml, 100ml and twin-pack sizes across more than ten retailers in multiple regions, confirmed 2026-10-07.

Other products compared: The Ordinary(Niacinamide 10% + Zinc 1% Oil Control Serum · Niacinamide, Zinc PCA · Water-based liquid serum · USD 6.00, 30ml (checked 2026-10-07) · Oily, blemish-prone skin), BYOMA(Hydrating Serum · Ceramide NP, Cholesterol, Phytosphingosine · Lightweight, dewy finish · GBP 12.99-13.00, 30ml (checked 2026-10-07) · Barrier hydration, normal to dry skin), CeraVe(Hydrating Hyaluronic Acid Serum · Sodium Hyaluronate, Ceramide NP/AP/EOP · Gel-cream serum · USD 22.99 regular / 17.24 sale, 30ml (checked 2026-10-07) · Normal to dry skin), The INKEY List(Niacinamide Serum · Niacinamide 10%, Multi-Molecular Hyaluronic Acid 1% · Lightweight water-based gel · USD 10.00, 30ml (checked 2026-10-07) · Normal to oily skin, uneven tone), Neutrogena(Hydro Boost Hyaluronic Acid Serum · Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Trehalose · Lightweight gel-serum · USD 22.99 (Target) / 29.99 regular (Ulta), 1 fl oz (checked 2026-10-07) · Dry, sensitive skin).

Sources: The Ordinary official product page, BYOMA Hydrating Serum retailer page (Space NK), CeraVe official product page, BYOMA Hydrating Serum ingredient record (INCIDecoder).