Dr.G was founded by a Korean dermatology doctor.

Brand description: Korea's No. 1 skincare brand.

Its three-step streamlined skincare formula—“prepare, soothe, protect”—uses soothing technology to care for sensitivity at its source and build a strong, healthy skin barrier.

Dr.G Green Mild Up Sun+: physical sunscreen, described as gentle and non-irritating.

No. 1, a brand recognized by Korean consumers.

OLIVE YOUNG sunscreen department rankings, 2019–2024: 2019, first place; 2020 and 2021, first place; 2022 and 2023, second place; 2024, third place.

Product name: Little Green Shield Sunscreen.

Sunscreen type: Purely physical sunscreen; 0% chemical sunscreen agents.

Features: Gentle for sensitive skin; suitable for use after photoelectric treatments; helps reduce rebound darkening and visible dullness after sun exposure. Refreshing texture that is non-sticky and non-occlusive, and forms a film quickly.

Comparison shown: zinc oxide sunscreen covers the full ultraviolet spectrum. Traditional multiple-filter sunscreens include Octocrylene, Uvinul T150, and Avobenzone. The ultraviolet categories are labeled as sunburn (UVB), tanning (UVA), and photoaging (UVA).

The diagram explains that physical sunscreen forms a protective film on the skin’s surface and reflects ultraviolet rays, while chemical sunscreen absorbs ultraviolet rays and releases them as heat.

Tested in a product efficacy test: more than sun protection, it also soothes and reduces redness. After 30 minutes of use.

Easy to remove with facial cleanser; comparison before and after cleansing with facial cleanser.

Zinc oxide works with three botanical extracts to provide sun protection and soothing care for sun-exposed sensitive skin. Zinc oxide: broad-spectrum sun protection; centella asiatica: supports the skin barrier and repair; houttuynia cordata: soothes sensitive skin; Pycnogenol: antioxidant care.

4-free formula developed for sensitive, delicate skin: 0% fragrance, 0% mineral oil, 0% colorants, and 0% paraben preservatives.

The descriptions refer to the physical or chemical properties of specific formula ingredients (zinc oxide, centella asiatica extract, houttuynia cordata extract, and maritime pine bark extract), based on relevant scientific literature.

Specially developed for sensitive skin, with a gentle feel.

Texture: refreshing.

Six sensitive-skin test results: after 28 days of use, participants agreed.

Skin irritation test (24-hour patch test): The skin irritation index was 0.00; the product was judged non-irritating. Source: KC Skin Clinical Trial Center (32 subjects).

Eye irritation test: Under no-rinse conditions, the test substance was non-irritating to the eyes. Source: Suzhou Guosheng Biotechnology Co., Ltd.

Sunscreen washability test: After one use and one basic cleansing, the instrument-based cleansing-rate result indicated that it was easy to wash off. Source: Korean third-party testing institution (21 subjects).

Sensitive-skin suitability test: The product was judged non-irritating for sensitive-skin participants who tested positive in the lactic-acid stinging test. Source: P&K Skin Clinical Research Center (32 subjects).

Skin phototoxicity and photoallergic reaction test: No skin phototoxicity or photoallergic reaction was observed. Source: Suzhou Guosheng Biotechnology Co., Ltd.

Non-nanoparticle test: Average particle size was 264±141.7 nm; the proportion of particles below 100 nm was 0.00% (non-nano grade). Source: Ewha Womans University SKIN QC DERMATOLOGY.

Skin-panel test: The product was confirmed suitable for use after the skin-panel procedure; it caused no irritation and had a soothing effect. Source: P&K Skin Clinical Research Center (22 participants).

Sun protection index test: SPF (protection against sunburn): measured 53; PA (protection against tanning/UVA): measured 16. Source: Suzhou Guochen Biotechnology Co., Ltd.

Moisturizing efficacy test: Compared with before use, stratum corneum moisture content in the test area increased significantly 1, 4, and 8 hours after use of the sample. Source: Tianjin Customs Industrial Product Safety Technology Center (29 participants).

Skin barrier repair and soothing test: For skin damaged by physical irritation, the product improved the skin barrier and provided a soothing effect. Source: P&K Skin Clinical Research Center (23 participants).

Routine physicochemical and microbiological testing: Total bacterial count, thermotolerant coliforms, Pseudomonas aeruginosa, Staphylococcus aureus, total mold and yeast counts met the requirements of the Cosmetic Safety Technical Specifications (2015 edition). Mercury, arsenic, lead, cadmium, and dioxane levels also met requirements. Source: Suzhou Guochen Biotechnology Co., Ltd.

Q: How can a pilling feel after applying mineral sunscreen be avoided? A: Apply basic moisturizer before use (such as a moisturizing serum or cream); a richer skincare product may be applied afterward. This two-step moisturizing approach can help balance the skin feel.

Q: How can mineral sunscreen be applied more naturally? A: Apply it in sections, dotting the sunscreen onto areas such as the forehead, cheeks, tip of the nose, and chin. For the nose and chin, use a “gently spread” technique afterward; cover each area evenly.

Q: Does the product contain preservatives? A: The current formula contains no preservatives.

Dr.G was founded by Korean dermatologist Dr. Ahn Gun-ki. The brand says it helps subsequent skincare benefits unfold by building a healthy skin barrier, and that dermatology experts from multiple fields jointly develop its products to improve sensitivity concerns.

Dr.G says its formulas have undergone rigorous skin irritation and sensitive-skin testing, providing gentle care for the skin.

Dr.G’s three-step skincare approach is “exfoliation care, soothing repair, and barrier protection.” It aims to support the skin’s natural renewal cycle and build a strong, healthy skin barrier.

The source describes a physical sunscreen system with no chemical sunscreen agents added, and states that protection covers UVA, UVB, blue light, and infrared. It notes good photostability of the sunscreen filters and recommends reapplication after heavy sweating, swimming, or wiping.

Formula notes: no fragrance, colorants, parabens, or mineral oil added; contains extracts of Centella asiatica, Houttuynia cordata, and Pinus pinaster.

Tests cited in the source include a 24-hour patch test with 32 participants aged 20–55, reported as showing no irritation; a four-week evaluation involving 22 participants aged 20–59; and a 28-day questionnaire evaluation involving 33 participants aged 18–50, in which the source says 100% of participants agreed that the product felt lightweight and comfortable after use. A separate test with 23 female participants reported improved skin barrier and soothing effects 30 minutes after use compared with the untreated area. The source notes that results vary by individual.

A third-party test note reports a mean particle size of 2464±141.7 nm using DLS, with no particles smaller than 100 nm detected (0.00%).