The ones people actually ask

The 004 Vitamin C Serum in the morning, $40. It is the mildest thing we make and a complete routine on its own with a moisturizer over it. If you want one purchase that covers the whole day, the Duo pairs it with the 001 cream for $85. You do not need all four to begin, and buying all four at once is the fastest way to not know which one is working.

No. Each formula works on its own, and most people start with one. The four are built to layer without repeating each other, so if you do want a complete routine it is already worked out for you — but there is no step you are missing if you only own the cream.

Most people can, but not on the same face on the same night when you are starting out. 004 in the morning and 003 at night is the arrangement that causes the fewest problems. There is a longer answer in the journal.

Yes. Nothing here needs the rest of the range to work. Apply thinnest to thickest, keep the retinol to the evening, and if another product in your routine is also a retinoid or a strong acid, use them on alternate nights rather than together.

All four are fragrance-free, which removes one of the most common causes of irritation in a leave-on product. Start with the Copper Peptide Cream or the Peptide Eye Gel, introduce one new formula at a time, and patch test on your inner forearm for a couple of days first. Leave the retinol until last, and start at twice a week.

Yes, and it matters more if you are using the retinol. We don't sell one. Any broad-spectrum SPF 30 or higher you will actually wear every morning is the right one.

With daily use, expect roughly two to three months from a serum or the eye gel, and two months from the cream. The retinol lasts longer because you use it two or three nights a week, not every night. A full routine bought together tends to run out at slightly different times, which is normal.

Because they own their own manufacturing and we do not, and we would rather charge honestly than cut the formula. What you get for the difference is the whole ingredient list printed on the page, a straight answer about what each formula will and will not do, and a refund if it does not agree with you. If price is the deciding factor, buy theirs — that is a reasonable choice and we would rather say so.

Our supplier won't verify them, so we don't publish a number we can't stand behind. Every product page carries the full ingredient list in the order it's actually mixed.

Each product page lists the formulation attributes that apply to that formula, all of them checkable against its ingredient list.

They are formulated and filled in the United States by our manufacturing partner, and shipped from there. We are a small US company; we do not own the facility.

Across the United States, except Alaska, Hawaii, US territories and military (APO/FPO) addresses. We do not ship internationally yet.

$8 flat, and free on orders of $70 or more. Express is $15.

Orders are prepared for despatch within 2–5 business days. After that, standard takes 2–4 business days in transit and express 1–3. So most standard orders arrive 4–9 business days after you place them.

If it's unopened with its seal intact, yes — within 30 days of delivery, for a full refund of the product price. Return shipping is paid by you. We can't accept returns on opened or used products.

Ask your doctor or midwife before using the Retinol Night Serum. Retinoids are commonly advised against during pregnancy, and that is a medical decision rather than one we can make for you. For any of the four, bring the full ingredient list — published on every product page — to whoever is looking after you.

Email us and we'll refund you — you don't need to send it back and you don't need to be inside the 30-day window. Stop using the product, and if a reaction is severe or persistent, see a doctor.

Email us at hello@ozeralabs.com with your order number, the product, and what happened. We keep a record of every report, as federal cosmetics regulation requires.