Skin-Nomad's Take — At a Glance
- Retinol and retinal at 1,000 ppm each, 2,000 ppm of retinoid in total
- NAD+ at 100 ppm with niacinamide and adenosine for support
- Dual-phase evening serum, shaken before each use
The 2000 in the name is the retinoid dose: 1,000 ppm of retinol plus 1,000 ppm of retinal, or 0.1% of each. PURITO SEOUL, the South Korean brand known for short, gentle formulas, adds NAD+ at 100 ppm and a good measure of niacinamide, and keeps the formula in two layers until you shake it. It is an evening serum for fine lines, firmness and rough texture.
Key Benefits
- Two retinoids work at two speeds. Retinal needs one conversion to become retinoic acid, the form skin acts on, while retinol needs two. Pairing them gives a faster start with a steadier follow-through, and over weeks of use the pair smooths fine lines and refines rough texture.
- NAD+ adds the newest ingredient in the bottle. Nicotinamide adenine dinucleotide is the coenzyme cells use to make energy, and it has become a talking point in longevity skincare. PURITO lists it at 100 ppm. Topical research on it is still early, so we treat it as a supporting ingredient rather than the headline.
- Niacinamide and adenosine back up the retinoids. Niacinamide sits seventh on the list, high enough to even tone and support the barrier, and adenosine is a long-established ingredient for the look of fine lines.
- Ceramide NP, centella and glycerin keep skin comfortable. Glycerin draws water into the skin, and a little ceramide NP and centella cushion it, which counts most in the first weeks of any retinoid.
Texture & Finish
The two layers come together with two or three gentle shakes into a light serum that you pat in until it is absorbed. PURITO notes the colour may yellow over time, which is normal for a formula carrying retinoids and beta-carotene.
Note: This is a retinoid serum for evenings only. Start two or three evenings a week, as PURITO recommends, and build up as your skin adjusts.
Ideal For
- Skin types: Normal, dry, combination and oily skin; sensitive skin should start slowly.
- Skin concerns: Fine lines, loss of firmness, rough or uneven texture and dullness.
- Best used by: Someone already comfortable with a gentle retinol who wants more retinoid in one step.
FAQ
Q: How does 2,000 ppm of retinoid compare with a 0.1% retinol serum?
A: 2,000 ppm is 0.2% in total, split between 0.1% retinol and 0.1% retinal. Retinal is one conversion closer to retinoic acid, so that half of the dose acts faster than the same amount of retinol would. It is a step up from an entry-level retinol, not a first retinoid.
Q: Should I stop if my skin flakes in the first weeks?
A: Not necessarily. Mild dryness and flaking are common while cell turnover speeds up, and they settle as skin adjusts. Drop back to fewer evenings rather than stopping, and stop if redness or stinging carries on.
Q: Where does it go in my routine?
A: Evenings only, after cleansing and toner and before moisturiser. Keep exfoliating acids to different evenings, and wear sunscreen every morning as the last step of your skincare.
Q: Can I use the Retinol Retinal 2000 NAD+ Serum during pregnancy?
A: We recommend pausing it. It contains NAD+, a newer skincare ingredient with no clinical safety data in pregnancy, and two retinoids, which we don't recommend during pregnancy or while breastfeeding. PURITO also advises against using it during pregnancy and breastfeeding.
The number on the bottle is the dose, which is more than most retinoid serums tell you.
Explore more
Browse more retinol and retinal formulas, see our NAD+ picks, or explore the full PURITO SEOUL range.
Skin-Nomad's Take — At a Glance
- Retinol and retinal at 1,000 ppm each, 2,000 ppm of retinoid in total
- NAD+ at 100 ppm with niacinamide and adenosine for support
- Dual-phase evening serum, shaken before each use
The 2000 in the name is the retinoid dose: 1,000 ppm of retinol plus 1,000 ppm of retinal, or 0.1% of each. PURITO SEOUL, the South Korean brand known for short, gentle formulas, adds NAD+ at 100 ppm and a good measure of niacinamide, and keeps the formula in two layers until you shake it. It is an evening serum for fine lines, firmness and rough texture.
Key Benefits
- Two retinoids work at two speeds. Retinal needs one conversion to become retinoic acid, the form skin acts on, while retinol needs two. Pairing them gives a faster start with a steadier follow-through, and over weeks of use the pair smooths fine lines and refines rough texture.
- NAD+ adds the newest ingredient in the bottle. Nicotinamide adenine dinucleotide is the coenzyme cells use to make energy, and it has become a talking point in longevity skincare. PURITO lists it at 100 ppm. Topical research on it is still early, so we treat it as a supporting ingredient rather than the headline.
- Niacinamide and adenosine back up the retinoids. Niacinamide sits seventh on the list, high enough to even tone and support the barrier, and adenosine is a long-established ingredient for the look of fine lines.
- Ceramide NP, centella and glycerin keep skin comfortable. Glycerin draws water into the skin, and a little ceramide NP and centella cushion it, which counts most in the first weeks of any retinoid.
Texture & Finish
The two layers come together with two or three gentle shakes into a light serum that you pat in until it is absorbed. PURITO notes the colour may yellow over time, which is normal for a formula carrying retinoids and beta-carotene.
Note: This is a retinoid serum for evenings only. Start two or three evenings a week, as PURITO recommends, and build up as your skin adjusts.
Ideal For
- Skin types: Normal, dry, combination and oily skin; sensitive skin should start slowly.
- Skin concerns: Fine lines, loss of firmness, rough or uneven texture and dullness.
- Best used by: Someone already comfortable with a gentle retinol who wants more retinoid in one step.
FAQ
Q: How does 2,000 ppm of retinoid compare with a 0.1% retinol serum?
A: 2,000 ppm is 0.2% in total, split between 0.1% retinol and 0.1% retinal. Retinal is one conversion closer to retinoic acid, so that half of the dose acts faster than the same amount of retinol would. It is a step up from an entry-level retinol, not a first retinoid.
Q: Should I stop if my skin flakes in the first weeks?
A: Not necessarily. Mild dryness and flaking are common while cell turnover speeds up, and they settle as skin adjusts. Drop back to fewer evenings rather than stopping, and stop if redness or stinging carries on.
Q: Where does it go in my routine?
A: Evenings only, after cleansing and toner and before moisturiser. Keep exfoliating acids to different evenings, and wear sunscreen every morning as the last step of your skincare.
Q: Can I use the Retinol Retinal 2000 NAD+ Serum during pregnancy?
A: We recommend pausing it. It contains NAD+, a newer skincare ingredient with no clinical safety data in pregnancy, and two retinoids, which we don't recommend during pregnancy or while breastfeeding. PURITO also advises against using it during pregnancy and breastfeeding.
The number on the bottle is the dose, which is more than most retinoid serums tell you.
Explore more
Browse more retinol and retinal formulas, see our NAD+ picks, or explore the full PURITO SEOUL range.
