Amber glass and a closed dropper: vitamin C keeps longer away from light and air.
Lumarind · the one serum we make
C15 Daylight Serum
15% vitamin C (L-ascorbic acid) with vitamin E and ferulic acid, for brighter-looking, more even-looking skin. One step, every morning.
Sample$3430 ml · $1.13 per ml
- Free shipping over $40, $4.95 below that
- Ships the next business day, arrives in 2 to 5 business days (US)
- 30-day returns, opened bottles too
- Vitamin C
- 15% L-ascorbic acid
- pH
- 3.0 to 3.5
- Base
- Water-based, light
- Free from
- Fragrance, essential oils, drying alcohol
01 · What it does
A daily vitamin C that tells you what is in it.
Brighter-looking skin
A stable 15% L-ascorbic acid, the form of vitamin C most used in skincare, helps a dull complexion look more awake with daily use.
A more even-looking tone
Used every morning, it helps the look of uneven tone and marks left by old spots soften over the weeks.
Day-time support under sunscreen
Vitamins C and E with ferulic acid are antioxidants. They work alongside your SPF; they never replace it.
Will it suit my skin?
- Normal, oily, combination
- Yes, every morning.
- Dry
- Yes, then a moisturiser on top.
- Sensitive
- Start every other morning after a patch test.
- Not for now
- Broken, sunburned or freshly peeled skin.
02 · How to use
Morning, step two, three drops.
- 1CleanseRinse, pat dry.
- 2C15 Daylight Serum3 to 4 drops on dry skin: face and neck. Wait a minute.
- 3MoisturiserAny you like.
- 4Sunscreen SPF 30+Every day. Vitamin C works best with it.
Not in the same routine as
- Retinol and other retinoids, use those at night instead
- Exfoliating acids (AHA, BHA), use those at night too
- Benzoyl peroxide, it can oxidise vitamin C
- Copper peptides, keep them for the evening
Fine together
- Niacinamide
- Hyaluronic acid
- Sunscreen
- Your moisturiser
Patch test first
- Put one drop behind your ear or on your inner arm.
- Leave it for 24 hours, no washing.
- No redness or itching? Start every other morning for a week.
A light tingle in the first days is common. If your skin burns, turns red or itches, rinse it off and stop using it.
Why it changes colour
Vitamin C reacts with air and light. The serum starts pale straw and slowly turns golden. That is normal. Dark orange or brown means it has oxidised: stop and write to us for a fresh bottle.
FreshFineStop
Keep the cap closed, out of the sun, below 25 °C. Use within 3 months of opening.
03 · Formula
Every ingredient, with the percentages that matter.
| Ingredient | What it does | Amount |
|---|---|---|
| L-ascorbic acid vitamin C | Brightening antioxidant | 15% |
| Tocopherol vitamin E | Antioxidant, helps keep vitamin C stable | 1% |
| Ferulic acid | Plant antioxidant, partners C and E | 0.5% |
| Panthenol pro-vitamin B5 | Comforts and softens | 1% |
| Sodium hyaluronate | Holds water in the skin's surface | 0.2% |
Full ingredient list
Aqua (Water), Ascorbic Acid, Propanediol, Glycerin, Ethoxydiglycol, Pentylene Glycol, Panthenol, Tocopherol, Ferulic Acid, Polysorbate 20, Sodium Hyaluronate, Hydroxyethylcellulose, Sodium Hydroxide, Phenoxyethanol, Ethylhexylglycerin.
Example list written for this design. In a real store the list on the box is the one that counts, and it can change between batches.
- pH 3.0 to 3.5
- Water-based
- Fragrance-free
- No essential oils
- No drying alcohol
- Vegan
- Not tested on animals
04 · Compare
What you can check before you buy.
Sample A comparison slot: the store owner fills the right-hand column from their own research.
| Point | Lumarind C15 | A typical vitamin C serum |
|---|---|---|
| Vitamin C % on the label | 15% L-ascorbic acid | Often only "with vitamin C" |
| pH printed | 3.0 to 3.5 | Rarely |
| Full ingredient list on the page | Yes, in order | Key ingredients only |
| Light-proof bottle | Amber glass in a box | Clear or frosted glass is common |
| Fragrance | None | Often added |
| Returns on opened bottles | 30 days | Unopened only |
05 · Reviews
Sample reviews, sorted by skin type.
These slots show where the store's reviews app goes. They are written for this example, not by customers. In a real store every review is published, good and bad.
Showing all 6 sample reviews
-
Sample review
Age 25 to 34 · Combination skin · Concern: dull tone
Three drops after cleansing, then moisturiser and SPF. It sinks in fast and does not pill under sunscreen. My skin looks less tired by the end of the month.
- Brightness
5 of 5 - Gentleness
4 of 5 - Value
4 of 5
-
Sample review
Age 35 to 44 · Sensitive skin · Concern: redness
It stung on day one. I patch tested, went to every other morning and that works for me now. Not the serum for every day on my skin, so three stars.
- Brightness
3 of 5 - Gentleness
2 of 5 - Value
4 of 5
-
Sample review
Age 18 to 24 · Oily skin · Concern: old spot marks
Light and not sticky, which matters with oily skin. The marks from old spots look softer after about six weeks. I like that the pH and the percentage are printed.
- Brightness
4 of 5 - Gentleness
5 of 5 - Value
5 of 5
-
Sample review
Age 45 to 54 · Dry skin · Concern: uneven tone
On its own it felt a little tight, with a rich cream on top it is comfortable. My tone looks more even in photos. The amber bottle is a nice touch.
- Brightness
4 of 5 - Gentleness
4 of 5 - Value
4 of 5
-
Sample review
Age 35 to 44 · Combination skin · Concern: dull tone
Went golden after two months, which the page warned me about, so no surprise. The subscription arrives before I run out.
- Brightness
4 of 5 - Gentleness
4 of 5 - Value
5 of 5
-
Sample review
Age 25 to 34 · Oily skin · Concern: dull tone
No smell at all, which I wanted. One bottle lasts me close to three months at three drops a day.
- Brightness
5 of 5 - Gentleness
5 of 5 - Value
4 of 5
06 · Questions
Before you order.
Can I use it on sensitive skin?
Often yes, slowly. Do the patch test above, then start every other morning for the first week. If it burns or stays red, stop; a lower-strength vitamin C may suit you better.
Morning or evening?
Morning, after cleansing and before moisturiser and sunscreen. Keep retinoids and exfoliating acids for the evening.
How soon will I see a difference?
It differs per person. Skin usually feels smooth from the first week; a brighter, more even look tends to build over 8 to 12 weeks of daily use with daily sunscreen. This is a cosmetic, not a treatment.
Why did my serum turn darker?
Vitamin C oxidises with air and light, so it slowly turns from pale straw to golden. Golden is fine. Dark orange or brown means it is past its best: write to us and we send a fresh bottle.
What does shipping cost and how fast is it?
$4.95 within the US, free on orders over $40 (two bottles, or the subscription with a second item). Orders ship the next business day and take 2 to 5 business days to arrive.
What if it doesn't suit me?
Send it back within 30 days of delivery, opened or not, and you get the price of the bottle back. The return label is free.
How do I recycle the packaging?
The box is paper: recycle it with paper. Rinse the amber glass bottle and recycle it with glass. The dropper (rubber and plastic) goes with general waste.