Hada Labo Gokujyun Premium Lotion Versus Hada Labo Premium Hydrating Lotion

Dipropylene Glycol is a synthetically created humectant, stabilizer, and solvent.

This ingredient helps:

Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.

This ingredient mainly works behind the scenes and helps with:

Hydrogenated Starch Hydrolysate is a made up of a mixture of sugar alcohols (like sorbitol) and is created by hydrogenating corn, wheat, or potato starch.

It acts as a humectant and draws water to the skin to keep it hydrated. Generally, this is a well-tolerated and non-irritating ingredient.

Hydroxyethyl Urea comes from urea. It is a great moisturizer and often compared to glycerin.

The manufacturer claims hydroxyethyl urea is not sticky or tacky, so no modifier ingredients are needed to adjust how it feels on skin.

PEG-32 is a synthetic and water-soluble polymer with 32 repeating units. It has humectant, solvent, and emulsifying properties.

As a solvent and emulsifier, it helps dissolve and blend ingredients. It is also able to attract water as a humectant to help hydrate skin. According to a manufacturer, this ingredient is non-greasy, gentle, and mildly scented.

This ingredient is also known as Macrogol 4000. It is a polyethylene glycol with an average molecular weight of about 3,000 - 4,000 and functions as a humectant and solvent.

Solvents help dissolve and evenly distribute other ingredients within a formula.

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.

Polyquaternium-51 is a polymer salt. It helps hydrate the skin by creating a film on top. This film traps moisture in, keeping your skin soft and hydrated.

Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.

Sapnification is the process of creating fatty acid metal salts from triglycerides and a strong base. During this process, Potassium Hydroxide is used up and is not present in the final product.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Sodium Hyaluronate Crosspolymer is a crosslinked version of sodium hyaluronate. This just means it's linked into a 3D mesh network that lets it be more stable and sit on skin as a cohesive, gel-like film rather than sinking into skin.

A 2016 human skin study found crosslinked HA increased epidermal water content by 7.6% over the control group and reduced transepidermal water loss by 27.8%.

Succinic acid is an odorless white powder. It is naturally found in our bodies but can also be derived from living organisms.

Succinic acid is water-soluble. The pH level of this ingredient is between 4.2 and 5.6.

Triethyl Citrate comes from citric acid. It has masking, perfuming, and solvent properties. As a solvent, this ingredient helps disperse ingredients evenly in skincare.

One manufacturer claims this ingredient can:

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

Lactococcus/Hyaluronic Acid Ferment Filtrate is a filtrate of the product obtained by the fermentation of Hyaluronic Acid by the microorganism Lactococcus.