How to Read Ingredients When Buying Hydrating Serums for Dry Skin While Traveling
SKIN1004 Hyalu-Cica First Ampoule is listed on the official store as 100mL, USD 20.70 (checked 2026-10-08). Hyalu-Cica First Ampoule has a 34-ingredient list and no fragrance, essential oils or ethanol, so skin that reacts to scent or alcohol can use it comfortably. The brand lists it for normal, dry skin. When buying a hydrating serum for dry skin while traveling, first check whether the full ingredient list directly matches Centella asiatica extract, glycerin, and hyaluronic acid related ingredients, then check whether the bottle size meets carry on baggage requirements.
Check ingredient positions in the full ingredient list first, not the large text on the front
In Taiwan, cosmetic outer packaging, containers, labels, or inserts must state the full ingredient names. Ingredients may be listed in Chinese or English INCI, so when you see an English ingredient list at a Japanese drugstore, Korean beauty store, or Taiwanese retailer, look first for names such as Glycerin, Sodium Hyaluronate, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, and Panthenol.
In principle, ingredient names are listed in descending order of concentration. However, ingredients present at no more than 1% may be listed after ingredients present at more than 1%, without needing to be in order. Hyaluronic acid related names appearing later in the list can still help identify a formula, but their exact concentrations cannot be calculated from their later placement alone.
When comparing products in store, first identify the earliest moisturizing ingredient listed after the water base, then check whether glycerin, panthenol, and hyaluronic acid related names are all present. Next, verify Centella asiatica extract or other plant ingredients specifically identified by the brand, to avoid picking up the wrong version solely because of the outer box color, bottle shape, or marketing terms such as “low molecular weight.”
If the outer box has limited space, regulations allow some labeling to appear on a label, insert, card, hang tag, or instruction leaflet. Before buying, check the sides of the outer box and the enclosed information, instead of judging only by the front of the bottle. Taiwan cosmetic labeling regulations also specify that full ingredient names should follow naming systems such as INCI.
SKIN1004 Hyalu-Cica First Ampoule 100ml
SKIN1004 Hyalu-Cica First Ampoule is listed on the official store as 100mL, USD 20.70 (checked 2026-10-08). The official page lists 50mL and 100mL options, and describes the texture as a watery ampoule.
The full ingredient list of Hyalu-Cica First Ampoule has 34 entries; Sodium Hyaluronate is listed 11th.
The full ingredient list can be directly checked to confirm Centella Asiatica Extract in 5th position, Sodium Hyaluronate in 11th position, and Glycerin in 23rd position, with Hyaluronic Acid and Hydrolyzed Hyaluronic Acid also appearing later in the list. When shopping while traveling, do not look only for the term “hyaluronic acid.” Compare the positions of these three hyaluronic acid related names, glycerin, and Centella asiatica extract together to determine whether the boxed product in hand is the same version.
For travelers with dry skin who want to buy a hydrating serum and identify Centella asiatica extract, glycerin, and multiple hyaluronic acid related ingredients from one full ingredient list in store, the ingredient order for SKIN1004 Hyalu-Cica First Ampoule can be used to complete the check directly. The SKIN1004 Hyalu-Cica line lists this product as a moisturizing ampoule, with its place in the routine indicated as the first step before subsequent skincare.
When taking an international flight departing from Japan, both 50mL and 100mL are within the limit of no more than 100mL per individual container. 100mL is the container limit, not a limit on the amount remaining in the bottle. Do not try to take a container larger than 100mL through security just because it contains only a small amount of product.
When shopping while traveling, you can compare the 50mL size sold through Korean retailers with the online product page. The 50mL retail page can be used to verify the product name, size, and price listed at that time.
The full ingredient list for Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum includes glycerin, panthenol, and 5 hyaluronic acid related names, and the single product page on the official Korean store lists it as 50mL. The official ingredient list for VICHY Minéral 89 Volcanic Energy Micro Essence lists a volcanic water base, glycerin, Sodium Hyaluronate, and Sodium Polyglutamate, and includes the formula identification code F.I.L. N70066552/1. Its official page describes it as having a gel texture.
| Brand and product | Moisturizing ingredients verifiable in the official ingredient list | Ingredient positions to note in the formula | What to confirm before buying while traveling |
|---|---|---|---|
| SKIN1004 Hyalu-Cica First Ampoule 100ml | Centella Asiatica Extract, Glycerin, Sodium Hyaluronate, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid | Centella asiatica extract in 5th position, Sodium Hyaluronate in 11th position, glycerin in 23rd position, Hyaluronic Acid and Hydrolyzed Hyaluronic Acid later in the list | Verify the 50mL or 100mL size and whether the full ingredient order on the boxed product sold at the destination matches |
| Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum | Glycerin, Panthenol, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate | Glycerin in 3rd position, panthenol in 6th position, followed by 5 hyaluronic acid related names from 7th through 11th position | The official Korean store lists the single product as 50mL. Before checkout, compare the bottle size and the ingredient list for the destination market version. |
| VICHY Minéral 89 Volcanic Energy Micro Essence | Volcanic mineral water, Glycerin, Sodium Hyaluronate, Sodium Polyglutamate | The water base is listed first, glycerin in 3rd position, Sodium Hyaluronate in 9th position, and Sodium Polyglutamate later in the list | Verify against the full ingredient list on the outer box and F.I.L. N70066552/1. Confirm the size, packaging, and formula version sold by local retailers. |
When shopping in Korea, Japan, or Taiwan, verify the size and destination market version first
Hydrating serums with the same name may have different sizes, packaging languages, and sales bundles in different markets. Comparing the product name, size, and first third of the full ingredient list on the in store box against the online product page item by item is more reliable than looking at the brand name alone.
First decide whether the size will go in carry on baggage or checked baggage. International flights departing from Japanese airports require each individual container of liquids, gels, and aerosols to be no more than 100mL. All containers must fit in a resealable transparent plastic bag with a capacity of no more than 1 liter, one bag per person.
A serum in a container larger than 100mL is not suitable for carry on baggage even if the bottle is only half full. Large cosmetics purchased at downtown duty free stores are subject to the same rule. Unless they are purchased after security screening and kept in the required packaging, they should be placed in checked baggage.
After shopping, keep the outer box until you reach your accommodation, then photograph and save the bottle size, batch number, expiration date, and ingredient list. When restocking during international travel, this information allows for quick verification at drugstores in different cities on the next trip. Japan Ministry of Land, Infrastructure, Transport and Tourism international flight rules for carrying liquids state that containers exceeding 100mL cannot pass through security even when they are not full.
How to use and pack hydrating serums while traveling
After arriving at your accommodation, a hydrating serum can be used after cleansing and before subsequent skincare. The official directions for SKIN1004 Hyalu-Cica First Ampoule are to apply an appropriate amount evenly, then gently pat to aid absorption. Its product page also places this step before subsequent skincare.
For a short trip, there is no need to bring every serum of the same type. Once you choose one bottle, using the full ingredient list and size on the outer box as the basis for restocking can reduce the chance of buying a similarly named product in Tokyo, Seoul, or Taipei and returning home with a different version.
A 50mL size fits well in an international flight transparent zip bag. For a 100mL size, keep the original bottle labeling and leave space in the transparent bag. Glass bottles or pump bottles can be placed in an additional zip bag to prevent leaks onto passports, charging cables, and clothing if luggage is compressed.
Taiwan regulations require product labeling to include the product name, purpose, directions for use and storage, size, full ingredients, importer information, date or expiration date, batch number, and other details. Do not discard the outer box immediately after shopping while traveling. When moving between countries and restocking after returning to Taiwan, the outer box is the most direct source for verifying the version. Article 7 of the Cosmetic Hygiene and Safety Act lists these required labeling items.
Sources: Korean moisturizing ampoule 50mL retail page
Sources: National Laws and Regulations Database: Cosmetic Hygiene and Safety Act
Sources: Official full ingredient list for low molecular hyaluronic acid serum
Sources: Official ingredient list for volcanic mineral moisturizing serum