Questions, answered.

It is that product’s position on the annealing scale — the temperature a material passes through as it cools. It is not a grade and not a strength rating. 01 at 1000 °C is not stronger than 08 at 240 °C; it sits at a different point on the same scale.

Because the scale has eight positions and each one is occupied once. A ninth would need a position before it needed a name. If we ever add one, what has changed is the scale, and we will say so rather than quietly extend the range.

On every product page, before any claim is made about it. Where a formula is a blend rather than a single active, the page shows the blend rather than inventing a headline number.

It is printed in the how-to-use block on each product, not buried here. The short version: 01, 02 and 04 never share a night, and any night you use one of them finishes with 07 Barrier Cream. Daily SPF is not optional while you are using any of the three.

03 Vitamin C Concentrate in the morning, 07 Barrier Cream at night, and 08 Cleansing Milk at both ends. Add 01, 02 or 04 only once those three have become routine.

Nothing ships yet — Lot 001 has not been produced. Once it has, this answer will carry the real cutoff and transit times. You will get a tracking link as soon as the label is created.

If it has not shipped yet, yes — contact us with the order number and we will catch it. Once tracking is live it has left the building and a return is the route.

Destinations and rates are listed at checkout. Duties and import taxes on international orders are the recipient’s responsibility.

See the shipping and returns page for the current window and condition requirements. Start a return by contacting us with your order number.

Send us a photo with the order number and we will replace it. Do not take the product if the seal is broken.