A skincare routine should feel comfortable enough to come back to every day. If you enjoy fresh textures but still want a dedicated moisturizing routine, the Dr.Althea Aqua Marine collection offers two products worth getting to know: Aqua Marine Deep Serum and Aqua Marine Watery Cream.
Their blue packaging makes them look like a matching pair, but they occupy different places in a routine. One is a serum applied before moisturizer; the other is a daily face cream.
This guide looks at their ingredients, how their roles differ, and how to decide whether one or both belong on your skincare shelf.
Meet Dr.Althea Aqua Marine Deep Serum
Aqua Marine Deep Serum is the product in the cobalt-blue dropper bottle. Dr.Althea describes it as a lightweight, fast-absorbing serum designed for skin that feels dehydrated or tight.
The 70% printed on the bottle refers to bamboo water, listed as Bambusa Vulgaris Water. It does not refer to a 70% concentration of hyaluronic acid.
The formula also includes glycerin, panthenol, niacinamide and Centella Asiatica extract, alongside several forms of hyaluronic acid: sodium hyaluronate, sodium hyaluronate crosspolymer and hydrolyzed hyaluronic acid. Its focus is an additional layer of hydration beneath your moisturizer.
When considering this serum, start with what is already working in your routine. If you like your current moisturizer but want to explore a separate hydrating step, a serum gives you that option without requiring you to replace every product you own.
How to Apply Aqua Marine Deep Serum
After cleansing, and after toner if you use one, apply a small amount of serum evenly across your face. Avoid the immediate eye area and gently press it into the skin before following with moisturizer.
SIONSKIN lists the serum for morning and evening use. During the day, sunscreen follows your moisturizing steps.
Keep the application simple. You do not need to add several other serums just because you are introducing this one. Starting with a familiar routine makes it easier to notice whether the new step adds something you actually enjoy.
Consider the experience as a whole: how your skin feels after application, whether the routine is convenient, and whether you still like the finish once your other products are on.
Meet Dr.Althea Aqua Marine Watery Cream
Aqua Marine Watery Cream is the moisturizer in the pale-blue tube. The brand describes it as a light daily cream for people who want moisture but dislike the feel of richer formulas.
Its ingredient list begins with bamboo water and includes glycerin, panthenol and multiple forms of hyaluronic acid. It also contains ingredients such as hydrogenated polydecene and caprylic/capric triglyceride, making it a different formula from the serum.
The intended finish is soft and comfortable, without the heaviness associated with a richer cream. Apply it after serum, or after cleansing and any toner you use when you are keeping the routine shorter.
The practical distinction is its place in your routine. Choose the cream when you are looking for a moisturizer. Consider the serum when you are looking for an additional step before the moisturizer you already use.
Who Might Prefer a Lighter Moisturizer?
Texture is a useful place to begin when choosing skincare. Some people enjoy a substantial cream that leaves a noticeable layer. Others prefer a moisturizer that feels less present on the skin.
If you often avoid your moisturizer because you dislike its weight, a lighter texture may be worth considering. However, having oily skin does not automatically mean you should skip moisturizing. The American Academy of Dermatology includes moisturizing in a basic routine, including for people with oily skin.
Very dry skin may need a richer option, particularly when the weather becomes colder or drier. There is no single moisturizer texture that suits everyone throughout the year.
Rather than choosing by the appearance of someone else’s skin, think about your own preferences: Do you like a fresh finish? Do you prefer fewer layers? Does your skin still feel uncomfortable after your routine? Those questions are more useful than trying to recreate a campaign photograph.
What Does “Watery Cream” Mean?
“Watery” describes the texture experience, rather than a separate skincare step. Aqua Marine Watery Cream still belongs in the moisturizer part of your routine. SIONSKIN describes it as a water-gel cream with a refreshed, non-greasy finish.
A lighter texture does not tell you everything about a moisturizer. Moisturizers can come as gels, lotions, creams or ointments, and their role includes adding moisture and helping reduce water loss from the skin.
When trying a new cream, pay attention beyond the first few seconds. Think about how comfortable your skin feels later in the day and whether the product fits the rest of your routine. That gives you a more useful basis for deciding whether to keep using it.
How to Use Aqua Marine Serum and Cream Together
The order is straightforward: serum first, cream second. This follows the application directions for both products.
A simple morning routine
Start with cleansing, then apply toner if you use one. Gently apply Aqua Marine Deep Serum, followed by Aqua Marine Watery Cream. Finish with sunscreen.
A simple evening routine
Cleanse to remove the day’s makeup and sunscreen, then apply toner if it is part of your routine. Follow with Aqua Marine Deep Serum and finish with Aqua Marine Watery Cream.
Think of this as an example you can adapt. Matching products can make the order easy to remember, but you do not need an entire collection to have a useful routine. Cleansing, moisturizing and sun protection remain the basic starting points.
Frequently Asked Questions
Do I need to buy both products?
No. Start with the step you are looking for. If you need a daily moisturizer, consider the cream first. If you already have a moisturizer you like and want to add a hydrating serum, consider the serum. Using both is an option, rather than a requirement.
Does the serum replace moisturizer?
Dr.Althea’s directions recommend following the serum with moisturizer. The products have separate roles even though both are focused on hydration.
Does this routine replace sunscreen?
No. The beach-inspired photographs reflect the collection’s visual theme; they do not indicate sun protection. During the day, use a broad-spectrum sunscreen with SPF 30 or higher and follow its directions, including reapplication.
How should I choose between a simple routine and extra layers?
Begin with what your routine is missing. If your existing products already leave your skin comfortable, there is no need to add another step simply to make the routine longer. If you want to explore a different texture or a separate serum, make that change deliberately and see whether you prefer the result.
Explore the Aqua Marine Collection at SIONSKIN
A useful skincare purchase starts with understanding where the product will fit. Whether you are choosing your next moisturizer or adding a serum before your current cream, you can explore each formula and its full ingredient list at SIONSKIN.
Shop Dr.Althea Aqua Marine Deep Serum
Shop Dr.Althea Aqua Marine Watery Cream