Vitamin C serums are widely recommended by skincare experts for their numerous benefits, including protection against pollution, boosting resilience to UV rays when combined with SPF, tackling hyperpigmentation, enhancing skin radiance, and promoting collagen production for a plump, smooth complexion. However, finding the right vitamin C product can be a challenge, as not all serums are created equal, and they come with varying concentrations and ingredient names. One of the most popular and effective forms is L-ascorbic acid. While beneficial, L-ascorbic acid is an active ingredient that can cause skin irritation, leading to stinging, redness, dryness, and soreness for some individuals.
For those seeking the benefits of vitamin C without the potential for irritation, alternative derivatives exist. Ascorbyl glucoside is one such derivative, which is less potent than L-ascorbic acid but is converted into ascorbic acid within the skin, offering similar benefits with a reduced risk of reaction. This makes it a good option for those who have experienced sensitivity to other vitamin C formulations.

The Ordinary Vitamin C Suspension 23% + HA Spheres 2%: An In-Depth Look
The Ordinary offers a wide range of vitamin C products, which can be overwhelming for consumers. Among them, The Ordinary Vitamin C Suspension 23% + HA Spheres 2% stands out as a water-free and silicone-free formula containing 23% pure, stable L-Ascorbic Acid. This formulation aims to address uneven skin tone, dullness, textural irregularities, and signs of aging. The inclusion of 2% Hyaluronic Acid Spheres is intended to complement the vitamin C by providing hydration.
Formula and Texture
The consistency of this serum is described as runnier than a gel or silicone-based serum, comparable in fluidity to CeraVe Daily Moisturizing Lotion. It is white and milky in appearance. However, a notable characteristic is its gritty, sandy texture, likened to finely ground vitamin C tablets mixed into a lotion. This texture has been a point of contention for many users, with some describing it as feeling like fine sandpaper on the skin.
Application and Experience
When applying the serum directly after cleansing and toning, users often experience a tingling sensation, especially during the first week of use. While this may subside over time, a slight tingle can persist for some. The formula is also noted for its potential to make the skin feel greasy throughout the day, despite appearing shiny. Some users have reported that the product has a metallic scent that lingers on the hands after application, necessitating hand washing post-use.
Addressing Texture and Irritation
To mitigate the gritty texture and stinging sensation, applying the serum to wet skin has been found to be effective. The water helps the L-Ascorbic Acid to dissolve, reducing the grittiness and minimizing irritation. This method allows the serum to perform more like a traditional serum and facilitates layering with other skincare products without issues. However, the greasiness may still be a concern for some.
Effectiveness and Results
While vitamin C serums in general are known for improving skin clarity, evening out skintone, and reducing hyperpigmentation, user experiences with The Ordinary Vitamin C Suspension 23% + HA Spheres 2% vary. Some users report visible brightening and a reduction in redness, while others note that significant changes may take months to appear. The presence of Squalane in the formula is noted to not aid hydration, and users interested in surface-level hydration are advised to use a dedicated squalane product beforehand.
Compatibility with Other Ingredients
It is important to note that this product conflicts with niacinamide. If you are using products containing niacinamide, such as CeraVe PM, it is advisable to use The Ordinary Vitamin C Suspension 23% + HA Spheres 2% in the morning rather than at night. Ideally, topical Vitamin C should be applied at alternate times with Niacinamide, with Vitamin C in the PM and Niacinamide in the AM.
User Reviews and Feedback
Reviews for The Ordinary Vitamin C Suspension 23% + HA Spheres 2% are mixed. Many appreciate its affordability and effectiveness in brightening the complexion and reducing acne marks. However, the gritty texture, potential for stinging, and greasiness are frequently mentioned drawbacks. Some users find ways to make it work for their skin, often by applying it to damp skin or mixing it with moisturizer, while others find the application experience too unpleasant to continue using the product.

Considerations for Use
The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is a highly affordable option that provides a high concentration of L-Ascorbic Acid. However, its formula is considered inelegant by some, requiring specific application methods to achieve a comfortable experience. The product is generally not recommended for beginners to vitamin C or those with very sensitive skin. If you are looking for a vitamin C serum that offers a smoother application and less potential for irritation, alternatives like Hylamide Boost C25 or other vitamin C derivatives might be more suitable.