Chapter 210
No.1
Retinaldehyde excels at accelerating the desquamation process, which helps to clear away dull, surface-level cells and reveal the fresher, more vibrant skin underneath.
It is a cornerstone ingredient for those seeking to improve the appearance of fine lines and uneven skin tone.
NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in all living cells, playing a critical role in energy metabolism and DNA repair.
In skincare, NAD+ is utilized to support the skin’s natural defense mechanisms against environmental stressors.
As skin cells age, their internal energy levels often decline, leading to a sluggish repair process.
No.2
By applying NAD+ topically, you are essentially providing the skin with the fuel it needs to optimize its own maintenance cycles.
This ingredient is particularly effective at supporting the skin barrier, ensuring that the moisture-retaining lipids remain intact and the skin remains resilient against daily external challenges.
THE SCIENCE OF SYNERGY AND COMPATIBILITY
The true power of these ingredients lies in their ability to work in concert.
While EGF focuses on signaling and structural support, Retinaldehyde drives the renewal process, and NAD+ provides the metabolic energy required to sustain these high-demand activities.
No.3
When combined, they create a comprehensive strategy for skin rejuvenation.
Compatibility is a key consideration when layering these actives.
Retinaldehyde is best utilized in the evening, as it is sensitive to light and works optimally during the body’s natural nocturnal repair cycle.
EGF is highly versatile and can be used both morning and evening, though many users prefer it in the morning to provide a protective, regenerative base for the day.
NAD+ is a stable molecule that can be integrated into either phase, though it is often paired with evening routines to maximize the skin’s recovery potential while you sleep.
No.4
Consumer feedback indicates that the order of application is paramount for achieving optimal results.
Because these ingredients often come in different formulations—ranging from light, water-based serums to more viscous, lipid-rich emulsions—the general rule of thumb is to apply products from the thin
nest consistency to the thickest.
This ensures that the smaller, more active molecules can penetrate the skin barrier effectively before being sealed in by heavier, occlusive layers.
STEP-BY-STEP MORNING AND EVENING ROUTINE
No.5
A successful routine is built on consistency and the correct sequence of application. For the morning, the goal is protection and support.
Start by cleansing the skin with a gentle, pH-balanced cleanser to remove any impurities from the previous night. Once the skin is clean and slightly damp, apply your EGF serum.
Allow it to absorb fully for at least sixty seconds. Following this, apply a lightweight moisturizer that contains NAD+ or a similar metabolic-supporting agent.
Finally, always conclude your morning routine with a broad-spectrum sun protection product, as this is the most critical step in preserving the benefits of your active ingredients.
In the evening, the focus shifts to intensive renewal. After cleansing, apply your Retinaldehyde treatment.
No.6
If you are new to vitamin A derivatives, it is advisable to start with a lower concentration and gradually increase usage as your skin builds tolerance.
Once the Retinaldehyde has been absorbed, follow with a nourishing, lipid-rich moisturizer to support the skin barrier.
If you choose to incorporate an additional NAD+ serum, it can be applied before your final moisturizer to provide an extra boost of energy to the skin cells during the overnight repair phase.
User trials frequently highlight that the "sandwich method"—applying a thin layer of moisturizer, followed by your active, and then a final layer of moisturizer—can be an effective way to introduce po
tent ingredients like Retinaldehyde to sensitive skin.
No.7
This technique helps to buffer the active ingredient, reducing the likelihood of temporary redness or dryness while still allowing the skin to reap the benefits of the renewal process.
SKIN TYPE ADAPTATIONS AND TOLERANCE BUILDING
Adapting these ingredients to your specific skin type is essential for long-term success.
Those with dry or dehydrated skin should prioritize the inclusion of ceramides and hyaluronic acid alongside their EGF and NAD+ products.
These humectants and lipids will help to maintain the skin barrier, ensuring that the renewal process driven by Retinaldehyde does not lead to excessive transepidermal water loss.