This post was reviewed and updated by Sarah Otto, Dermatology Nurse Practitioner and Founder of Otto Skin Goods on June 17, 2026.
I’ve always been a minimalist when it comes to my skincare routine. In fact, Otto’s serums and face oil were created to prove you really can use fewer ingredients and minimal steps to achieve a healthy complexion—maybe even your best skin yet.
However, recently my skincare routine has been stripped down to extreme minimalism.
This got me thinking: What if I could only use one ingredient on my skin? What could I absolutely never go without? Better yet, what’s my biggest skin concern? For me, the answer is most definitely pigmentation and uneven skin tone. Therefore, I couldn’t live without vitamin C (although, I think AHAs would be a close second for my occasional hormonal breakouts—bonus: they also help to reduce pigmentation issues!)
That being said, I figured others (like you) might be experiencing the same feelings, and wondering just how minimal you can get with your skincare routine. So, I broke down the top active ingredients you should be using according to your skin concern to help prioritize what your skin actually needs...
The Best Active Ingredient for Dehydrated Skin
The Issue: If you suffer from dehydration, your complexion is lacking serious hydration, or inadequate water retention. Dehydrated skin is often caused by lifestyle, weather and diet changes, causing your skin to appear dry, dull. Unfortunately, this tends to increase the prominence of fine lines and dark circles.
The Remedy: Meet your new friend, Hyaluronic Acid! This active ingredient is extremely effective in replenishing dehydrated skin, simply because it improves water retention. The results? A dewy, plump, healthy complexion almost immediately after your first few uses.
The Product: The Go-Getter Day Serum
The Best Active Ingredient for Dry or Sensitive Skin
The Issue: If you experience dry, sensitive skin, it means your complexion suffers a decreased moisture content—usually associated with a lack of oil production and a compromised skin barrier. In a nutshell, your face often appears dry, flaky and inflamed.
The Remedy: Turn to Ceramides. Ceramides are lipids that help form the skin barrier and retain moisture. While they’re produced naturally by the skin, dry skin is thought to be caused by a decrease or depletion of these natural ceramides. Therefore, adding ceramides back into your routine in the form of a moisturizer helps to replenish the ceramides in the skin and repair the skin’s barrier.
The Product: The Good Day Face Cleanser
The Best Active Ingredient for Dull or Aging Skin
The Issue: As your skin ages, it naturally becomes less elastic and more fragile. In addition, it decreases its natural production of oil, which can make your complexion appear drier and more wrinkled. Not to mention, your skin also decreases its ability to turn skin cells over more rapidly, causing it to appear dull.
The Remedy: One word: Retinol. This fan favorite not only helps to exfoliate by turning skin cells over more rapidly—it also works at a deeper level to enhance collagen production, smooth skin and even pigmentation issues.
The Product: The No Regrets Eye Cream
The Best Active Ingredient for Rosacea or Redness-Prone Skin
The Issue: Rosacea is an inflammatory skin condition that can vary in severity—from mild redness and flushing to visible blood vessels and red pimple-like breakouts.
The Remedy: Niacinamide is the answer. Also known as Vitamin B3, niacinamide can be helpful in stabilizing rosacea or redness-prone skin. That’s because it helps to decrease inflammation and increase natural ceramides in the skin which can strengthen the skin barrier and reduce sensitivity.
The Product: The Multitasker Night Serum
The Best Active Ingredient for Uneven Complexion or Hyperpigmentation
The Issue: Hyperpigmentation, uneven complexion, dark spots, discoloration—whatever you call it, this skin issue is annoying. To put it simply, the cause of irregular darkening of the skin is from an overproduction of melanin. Brown spots and an uneven skin tone can result from too much melanin being produced due to sun damage, hormonal changes or inflammatory damage to the skin from breakouts or eczema.
The Remedy: My personal favorite, Vitamin C. This super-potent antioxidant is packed full of skin benefits. For one, it aids in significantly reducing hyperpigmentation by inhibiting the enzyme tyrosinase, which helps to prevent melanin production. It also has excellent anti-inflammatory properties. Overall, it’s super brightening without altering the skin’s normal pigmentation.
The Product: The Fresh Start Face Oil
The Best Active Ingredient for Hormonal Breakouts
The Issue: You know it well: those stubborn acne breakouts caused by a fluctuation of hormones. Yep, these breakouts tend to follow a similar pattern with your menstrual cycle, with stubborn spots found around the chin and jawline area.
The Remedy: Get your hands on some AHAs. Glycolic, Lactic and Fruit Acids help to decrease oil production, while also improving cell turnover (so skin cells don’t get trapped in the pore and cause breakouts). Choose your favorite—we highly recommend gentle, but effective Fruit Acids, but any of these work like a charm!
The Product: The Multitasker Night Serum
The Best Active Ingredient for Acne-Prone Skin
The Issue: Acne-prone skin is a condition that occurs when your hair follicles get clogged with oil and dead skin cells. Breakouts typically occur in areas where the oil production is most prominent (think: your face, chest, upper back and shoulders).
The Remedy: Big thanks to BHAs for existing. Commonly known as Salicylic Acid, BHAs help to dissolve skin debris that clog pores. They also act as an anti-inflammatory and help inflamed pimples or pustules dissipate faster.
The Bottom Line
Even if you can’t give up two or three of these ingredients, hopefully this guide will help you choose multitasking products that contain the minimal number of ingredients your skin needs to stay healthy. Understanding what your skin actually needs for your particular skin concern helps to empower you with knowledge so you don’t waste time and money on products and ingredients that your skin simply doesn’t need. Now more than ever, Otto Skin Goods will help you use less (but better!) skincare. We’re all in this together, and we’re here to help give you the best skincare advice to help you achieve your best skin yet.
Frequently Asked Questions
What is the best active ingredient for dehydrated skin?
Hyaluronic Acid is the top pick for dehydrated skin. It improves water retention, leaving skin looking dewy and plump after just a few uses.
What should I use if I have dry or sensitive skin?
Ceramides are ideal for dry or sensitive skin. They help repair the skin barrier and replenish moisture, addressing the root cause of dryness and flakiness.
What ingredient is best for dull or aging skin?
Retinol is the go-to for aging or dull skin. It speeds up cell turnover, boosts collagen production, and helps even out pigmentation.
What can help with rosacea or redness-prone skin?
Niacinamide (Vitamin B3) is highly effective for rosacea and redness. It reduces inflammation, strengthens the skin barrier, and increases natural ceramide production.
How do I treat hyperpigmentation or an uneven skin tone?
Vitamin C is the best ingredient for hyperpigmentation. It's a potent antioxidant that inhibits melanin production and brightens the complexion without affecting normal skin pigmentation.
What's the best ingredient for hormonal breakouts?
AHAs, including Glycolic, Lactic, and Fruit Acids, help reduce oil production and improve cell turnover, preventing the clogged pores that lead to hormonal breakouts.
What should I use for acne-prone skin?
BHAs, most commonly known as Salicylic Acid, are the best choice for acne-prone skin. They dissolve the debris that clogs pores and help reduce inflammation from active breakouts.
Do I need to use all of these ingredients?
Not at all. The goal is to identify your primary skin concern and focus on the ingredient that targets it. Many products are formulated to multitask, so you can often address your needs with minimal steps.
