Retinol Retinal 2000 NAD+ Serum

Skin types

• Normal Skin
• Combination Skin
• Oily Skin
• Dry Skin

Concerns

• Wrinkles & Fine Lines
• Uneven Texture
• Loss of Elasticity
• Hydration & Glow

Routine step
Evening treatment after cleansing and before moisturiser.

PURITO SEOUL Retinol Retinal 2000 NAD+ Serum combines two forms of vitamin A, 0.1% Retinol and 0.1% Retinal, in one night treatment. Together, these retinoids support skin renewal and help improve the appearance of fine lines, uneven texture and reduced firmness. NAD+ is included as a complementary ingredient within the formula.

Supports Skin Renewal
Retinol and Retinal are converted into retinoic acid through different pathways in the skin. Retinal requires one conversion step, while Retinol requires two. Both help support skin renewal for a smoother, more refined appearance over time.

Targets Fine Lines & Firmness
Retinoids support collagen-related processes in the skin. With consistent use, they can help soften the appearance of fine lines and improve the look of skin firmness.

Improves Skin Texture & Clarity
By supporting skin cell turnover, the dual-retinoid formula helps improve uneven texture and dullness, leaving the complexion looking smoother and more even.

Retinol (0.1%)
A well-studied vitamin A derivative that supports skin renewal and collagen-related processes. With regular use, it helps improve the appearance of fine lines, wrinkles and uneven skin texture.

Retinal (0.1%)
Also known as Retinaldehyde, Retinal is a form of vitamin A that requires only one conversion step to become retinoic acid. It helps improve the appearance of fine lines, uneven texture and reduced skin firmness.

NAD+ (Nicotinamide Adenine Dinucleotide)
A coenzyme naturally involved in cellular energy metabolism. It is included as a complementary ingredient in the serum, although its specific contribution to visible skin improvements in the finished formula has not been established.

How to apply

• Gently shake the bottle 2–3 times before use.
• In the evening, apply 2–3 drops to clean, dry skin, after toner if used.
• Spread gently over the face, avoiding the eye area and lips.
• Follow with a moisturiser.

Getting started

If you're new to retinoids, begin with once a week to assess your skin's tolerance. Those already accustomed to retinoids may start with 2–3 evenings per week.

Gradually increase the frequency as your skin adapts. Daily use is not necessary to achieve benefits. If you experience persistent dryness, redness or irritation, reduce the frequency or discontinue use.

Good to know

• Avoid using other retinoid treatments in the same routine.
• Introduce exfoliating acids such as AHA and BHA on separate evenings to minimise irritation.
• Vitamin C can be used in your morning routine, with this serum reserved for evening use.
• Apply broad-spectrum sunscreen every morning.
• Do not apply to broken, wounded or irritated skin.
• Avoid use during pregnancy. During breastfeeding, consult your healthcare professional before using retinoids.
• Avoid combining with skin-stimulating devices or treatments unless specifically advised by a professional.

What is the difference between Retinol and Retinal?

Both are vitamin A derivatives that support skin renewal and help improve visible signs of ageing. The main difference is how they are converted into retinoic acid, the form that interacts with retinoid receptors in the skin.

Retinol requires two conversion steps, while Retinal requires only one. This makes Retinal a more direct precursor to retinoic acid, although the performance of a finished skincare product also depends on its concentration, formulation and stability.

What does Retinol Retinal 2000 NAD+ Serum do?

It targets visible signs of ageing, including fine lines, uneven texture and loss of firmness. By combining Retinol and Retinal, the serum supports skin renewal and helps improve the appearance of a smoother, more even complexion over time.

What does 2000 mean in the product name?

The number refers to the combined concentration of the two retinoids: 0.1% Retinol and 0.1% Retinal, equivalent to 2,000 ppm in total.

It does not mean the serum contains 0.2% Retinal. The two ingredients are different forms of vitamin A, with different conversion pathways and properties.

Is this serum suitable for beginners?

Because it contains both 0.1% Retinol and 0.1% Retinal, it is better suited to people who already have some experience with retinoids.

If you're new to vitamin A skincare, consider starting with a lower-strength retinoid. If you choose this serum, introduce it very gradually and pay attention to how your skin responds.

Can I use Retinol Retinal 2000 NAD+ Serum with other active ingredients?

Hydrating ingredients such as Glycerin, Hyaluronic Acid, Panthenol and Ceramides can complement a retinoid routine by supporting skin comfort and moisture retention.

Avoid layering additional retinoids in the same evening. Strong exfoliating acids may increase the risk of irritation, particularly during the adjustment period, so they are generally better used on separate evenings.

Vitamin C can be used in the morning, followed by sunscreen, while Retinol Retinal 2000 NAD+ Serum is used at night.

Can I use this serum if I have sensitive skin?

Retinol and Retinal can cause dryness, redness, flaking or irritation, especially when first introduced. A formula containing both at 0.1% is not the most suitable starting point for highly sensitive or retinoid-inexperienced skin.

If your skin already tolerates retinoids, introduce the serum cautiously. Applying moisturiser before and after the serum may help improve comfort, although this can change how the product is applied and tolerated.

How long does it take to see results?

Some people notice changes in skin smoothness within the first few weeks. Improvements in the appearance of fine lines, texture and firmness generally require consistent use over several weeks to months.

Results vary depending on skin condition, application frequency and individual tolerance. Using the serum consistently at a frequency your skin tolerates is more important than increasing to nightly use quickly.