What's the difference between a serum and a moisturizer?

Serums are lightweight, fast-absorbing formulas with a high concentration of active ingredients — like vitamin C, niacinamide, or hyaluronic acid — designed to penetrate deeper into the skin and address specific concerns. Moisturizers work primarily at the surface to seal in hydration and support the skin barrier using a mix of humectants, emollients, and occlusives. Apply serum first on clean skin, then follow with moisturizer to lock everything in.

What ingredients should I avoid in moisturizers?

The biggest ones to avoid are synthetic fragrance (a leading cause of contact dermatitis and skin sensitization), parabens (hormone-disrupting preservatives), silicones like dimethicone (create a smooth feel but can trap debris and disrupt the skin barrier over time), PEGs (penetration enhancers that can carry contaminants deeper into skin), and mineral oil or petrolatum in conventional forms (petroleum-derived occlusives that may contain impurities). A short, recognizable ingredient list is almost always a better sign than a long one.

Do I need both a serum and a moisturizer?

Not necessarily — it depends on your skin and goals. If you have specific concerns like hyperpigmentation, fine lines, or dehydration, a targeted serum adds value that a moisturizer alone can’t provide. But if your skin is generally balanced and you just want to maintain hydration and barrier health, a good moisturizer on its own is enough. Start simple: cleanser and moisturizer. Add a serum only when you have a specific concern you want to address.

Can clean moisturizers work for dry or aging skin?

Absolutely. The most effective ingredients for dry and aging skin — ceramides, hyaluronic acid, squalane, plant-based oils like rosehip and marula, and peptides — are all compatible with clean formulations. The idea that you need silicones or synthetic polymers to get a rich, effective moisturizer is a myth. Many clean moisturizers outperform conventional ones for dry skin because they use ingredients that genuinely support the skin barrier rather than just creating a temporary surface effect.

What is hyaluronic acid and is it safe?

Hyaluronic acid is a naturally occurring molecule found in your skin that holds up to 1,000 times its weight in water — making it one of the most effective humectants in skincare. Despite the word “acid,” it’s not exfoliating or irritating. It’s well-tolerated by virtually all skin types, including sensitive skin. In skincare products, it’s typically derived through fermentation (not from animal sources) and is considered one of the safest and most effective hydrating ingredients available.

Moisturizers & Serums

Moisturizers

Serums

Facial Care

Oils

Bundles & Gift Sets

Lotion Guide 📖

Most conventional moisturizers and serums rely on synthetic fragrance, silicones, and parabens to deliver results. The products here use botanical actives, plant-based oils, and clean formulations that work with your skin barrier — not against it.

Moisturizer vs. Serum: What’s the Difference?

Serums: Targeted, Concentrated Actives

Serums have a lightweight, fast-absorbing formula with a high concentration of active ingredients — think vitamin C, niacinamide, hyaluronic acid, or retinol. They’re designed to penetrate deeper into the skin and address specific concerns like hyperpigmentation, fine lines, or dehydration. Apply serum before moisturizer on clean skin.

Moisturizers: Barrier Support and Hydration Lock

Moisturizers work primarily at the surface level to seal in hydration and support the skin barrier. They typically contain a mix of humectants (draw water in, like glycerin or hyaluronic acid), emollients (soften skin, like plant oils), and occlusives (seal moisture, like shea butter or beeswax). A good moisturizer doesn’t need silicones or synthetic polymers to feel effective.

What to Avoid in Both

Synthetic fragrance is the #1 ingredient to eliminate from your moisturizer and serum routine — it’s a leading cause of contact dermatitis and skin sensitization. Silicones create a smooth feel but can trap debris and disrupt the skin barrier over time. Parabens are preservatives linked to hormone disruption. None of the products here contain any of these.

For more guidance on building a clean skincare routine, browse our beauty guides.

We avoid synthetic fragrance, parabens, phthalates, silicones (ingredients ending in -cone or -siloxane), PEGs, and artificial dyes. We look for transparent ingredient lists, clinically studied actives at effective concentrations, and formulas that support the skin’s natural barrier rather than masking issues.

Moisturizers & Serums FAQs

Serums are lightweight, fast-absorbing formulas with a high concentration of active ingredients — like vitamin C, niacinamide, or hyaluronic acid — designed to penetrate deeper into the skin and address specific concerns. Moisturizers work primarily at the surface to seal in hydration and support the skin barrier using a mix of humectants, emollients, and occlusives. Apply serum first on clean skin, then follow with moisturizer to lock everything in.
The biggest ones to avoid are synthetic fragrance (a leading cause of contact dermatitis and skin sensitization), parabens (hormone-disrupting preservatives), silicones like dimethicone (create a smooth feel but can trap debris and disrupt the skin barrier over time), PEGs (penetration enhancers that can carry contaminants deeper into skin), and mineral oil or petrolatum in conventional forms (petroleum-derived occlusives that may contain impurities). A short, recognizable ingredient list is almost always a better sign than a long one.
Not necessarily — it depends on your skin and goals. If you have specific concerns like hyperpigmentation, fine lines, or dehydration, a targeted serum adds value that a moisturizer alone can’t provide. But if your skin is generally balanced and you just want to maintain hydration and barrier health, a good moisturizer on its own is enough. Start simple: cleanser and moisturizer. Add a serum only when you have a specific concern you want to address.
Absolutely. The most effective ingredients for dry and aging skin — ceramides, hyaluronic acid, squalane, plant-based oils like rosehip and marula, and peptides — are all compatible with clean formulations. The idea that you need silicones or synthetic polymers to get a rich, effective moisturizer is a myth. Many clean moisturizers outperform conventional ones for dry skin because they use ingredients that genuinely support the skin barrier rather than just creating a temporary surface effect.
Hyaluronic acid is a naturally occurring molecule found in your skin that holds up to 1,000 times its weight in water — making it one of the most effective humectants in skincare. Despite the word “acid,” it’s not exfoliating or irritating. It’s well-tolerated by virtually all skin types, including sensitive skin. In skincare products, it’s typically derived through fermentation (not from animal sources) and is considered one of the safest and most effective hydrating ingredients available.

An Honest Review of Bobbie Organic Gentle Infant Formula