This serum is a water-based hydration step, not a replacement for a moisturiser. Its 10% hyaluronic acid complex works like a moisture magnet at the skin's surface, while aloe vera juice adds a calming, refreshing element and niacinamide helps improve the look of skin tone and pores. That makes it a reasonable extra step when skin feels dehydrated, looks dull, or has been exposed to dry indoor air or changing weather.
In a typical routine, apply the serum to cleansed skin first, let it absorb for about a minute, then follow with a moisturiser. The serum brings water into the upper layers of the skin; the moisturiser helps lock that water in and keep the skin comfortable. That is why the two are usually paired rather than substituted. If your skin is oily or you are in a humid climate, a light lotion may be enough, but the product is designed to sit under a cream in both morning and evening use.
In the morning, using it under a cream can give a smoother, fresher look before sunscreen or makeup. In the evening, it can be the extra moisture step after cleansing. If you combine it with strong actives, introduce it gradually and watch your skin's response. This is a cosmetic product and is not intended to diagnose or treat any medical condition.