CeraVe AM vs PM Facial Moisturizing Lotion: What's the Difference?

CeraVe AM Facial Moisturizing Lotion is a sunscreen first: a broad-spectrum SPF 30 or SPF 50 moisturizer for daytime. The PM Facial Moisturizing Lotion has no SPF and is a light night moisturizer. Both share niacinamide, three ceramides and hyaluronic acid. Use AM in the morning, as your last step, and PM at night or under a separate sunscreen.

If you want to check either formula against your own skin type before you buy, scan the barcode or label with the ingredient scanner in Pori.

Below we compare the three bottles side by side, explain the sunscreen filters in the AM versions, look at white cast and texture, and show how much you need to apply to get the SPF on the label. This is an ingredient-and-label comparison based on CeraVe's published formulas, not a hands-on test.

What is the difference between CeraVe AM and PM lotion?

The difference is sunscreen. The AM lotion lists its UV filters under "Active Ingredients," with percentages, the way US sunscreens do. The PM lotion is a plain moisturizer. The base formulas overlap: all three list ceramide NP, AP and EOP, niacinamide, sodium hyaluronate and cholesterol.

Sources: CeraVe's product pages for the AM SPF 30, the AM SPF 50 and the PM lotion. CeraVe notes that ingredient lists change and the package is the most current source.

Why is the AM lotion a sunscreen first?

Because its UV filters, not its moisturizers, are what the label promises, and they only work when applied like sunscreen. CeraVe's directions for both AM versions are to apply liberally 15 minutes before sun exposure and reapply at least every 2 hours. Those are sunscreen directions, and they matter more than any skin-care benefit.

The American Academy of Dermatology (AAD) makes the same point about moisturizers and cosmetics with SPF: they're convenient, but sunscreen needs to be reapplied approximately every two hours when you're outdoors. A single morning layer covers a commute and an indoor day. It doesn't cover a long lunch outside or an afternoon at the park.

Treat the AM lotion as your morning sunscreen that happens to moisturize. If you think of it as a moisturizer with a bit of SPF, you'll likely apply too little.

How much CeraVe AM lotion do you need for the label SPF?

About a teaspoon for the face. The AAD recommends at least 1 teaspoon of sunscreen for your face, roughly enough to cover the length of your index and middle fingers. That's much more than most people use for a moisturizer.

The reason is how SPF is tested. Manufacturers' recommended test thickness is 2 mg/cm², but a small study that measured how photosensitive patients applied sunscreen on a sunny day found a median of 0.5 mg/cm², with ears, temples and the sides and back of the neck most often missed. The authors concluded that protection was much lower than the stated SPF. The Skin Cancer Foundation adds that most people apply far less sunscreen than the amount used in lab testing.

1. Pump the AM lotion onto two fingers, base to tip.
2. Dot it over the forehead, nose, cheeks and chin, then spread it.
3. Cover the ears, hairline and neck.
4. Wait about 15 minutes before going out, as both the AAD and CeraVe advise.

Do the math on your bottle and it's sobering: a teaspoon is about 5 mL, so divide the volume on the label by 5 to see how many full-dose mornings it holds. If yours lasts several times longer than that, you're likely applying far less than the amount the SPF was tested at. Our guide on how much sunscreen to use has more detail.

Does CeraVe AM lotion leave a white cast?

It can, depending on your skin tone and how much you apply. Both AM versions contain zinc oxide (8% in SPF 30, 7% in SPF 50). CeraVe says its microfine zinc oxide dries with a clear finish, and it markets the SPF 50 as one that blends easily into all skin tones with no white residue. Those are brand claims, and how a formula looks on your skin depends on your tone and how much you use.

The AAD notes that tinted sunscreens matched to your skin tone can help you avoid the white residue or "cast" that some sunscreens leave, and that tinted sunscreen with iron oxide also protects against visible light, which can worsen dark spots. Neither AM lotion is tinted. If you have a deep skin tone and see a cast, rub the lotion in thoroughly in sections, let it set before makeup, or consider a tinted sunscreen instead. Our skincare routine for dark skin covers SPF without a white cast.

CeraVe AM SPF 30 vs SPF 50: which should you choose?

SPF 30 is enough for most everyday use. SPF 50 is the better pick for long days outside or if you know you under-apply. The AAD says SPF 30 blocks 97% of the sun's UVB rays, and higher SPFs block slightly more, though none blocks 100%. The FDA explains that SPF values primarily indicate UVB protection, while the broad-spectrum label covers UVA as well. The Skin Cancer Foundation recommends SPF 30 or higher for daily use and SPF 50 or higher, water-resistant, for extended outdoor activity.

The two AM formulas also differ in filters and base. SPF 30 uses octinoxate and more homosalate; SPF 50 drops octinoxate, adds octisalate and raises octocrylene. The SPF 50's ingredient list also includes soybean oil, so it doesn't carry the "oil-free" description the SPF 30 does, though both are labeled non-comedogenic. Neither page claims water resistance, so use a water-resistant sunscreen for swimming or heavy sweating, as CeraVe's own tips advise.

On safety, the FDA's most recent framework proposes zinc oxide and titanium dioxide as generally recognized as safe and effective. It placed the other filters in both AM lotions, including homosalate, octinoxate, octisalate and octocrylene, in a group needing additional data. The FDA says this does not represent a conclusion that those ingredients are unsafe, and it encourages continued use of sun protection. If you prefer mineral-only filters, neither AM lotion fits. See our explainer on chemical sunscreen filters.

Can I use CeraVe AM lotion at night?

You can, but there's no reason to. Sunscreen filters do nothing at night, and you'd be spending a product you need in generous amounts each morning. The PM lotion has the same ceramides, niacinamide and hyaluronic acid without the filters, which is why it's the better night layer. The reverse works too: the PM lotion can be worn in the morning under a separate sunscreen. For more on the night formula, read our CeraVe PM Facial Moisturizing Lotion review.

How do you use CeraVe AM and PM together?

Use them as a pair: AM in the morning, PM at night. That's how CeraVe positions them, and a dermatologist quoted on CeraVe's product pages describes them as a duo that can help ease the redness, dryness and irritation of prescription acne creams.

A few rules keep this simple:

• Apply the AM lotion last in the morning so nothing dilutes the filters.
• If you use retinoids or acids at night, the morning SPF step isn't optional.
• If the AM lotion pills under makeup, use less serum underneath and give it a few minutes to set.
• For babies under six months, the FDA says sunscreen is not recommended; ask a doctor first.

Which one should you buy?

If you only buy one and wear sunscreen daily, buy an AM version and use it generously. Choose SPF 30 for everyday wear and SPF 50 if you spend more time outdoors or under-apply. Add the PM lotion if you want a light, oil-free night moisturizer, especially alongside retinoids or benzoyl peroxide. If you already love a separate sunscreen, the PM lotion alone covers both day and night as a moisturizer, and your sunscreen does the protecting.