Vitamin C should not be exposed to light because light makes the actives unstable. Air and heat exposure also degrades vitamin C. While the percentage isn’t indicated, it’s quite low, making this the best serum to buy if you have sensitive skin or aren’t sure if your skin will tolerate it. Vitamin C serums don’t always provide a ton of hydration, but if you’re looking for one that truly pumps up the moisture, this is the one we recommend for you. The formula feels like a typical, lightweight face oil—as opposed to some vitamin C serums that have a grittier texture—and it nourishes the skin in addition to providing all of the wonderful antioxidant benefits. The only downside? Retinol can often lead to side effects like skin dryness, peeling, and irritation. Vitamin C helps boost vitamin E production. These 2 vitamins protect the skin from photo-ageing caused by free radicals and sun exposure. It stimulates the skin to produce collagen and resurface the outer layers. In a sense, it is an exfoliant because it encourages faster cell turnover. Dark spots become fainter, as a result. That’s why it gives users a much sought after glow.

Given its potency, it needs to be introduced slowly into your skincare routine, especially if you have sensitive skin. REN Skincare is a popular brand known for using natural and sustainable ingredients in their products. Here are some potential pros and cons of using REN Skincare products: Pros: The Ole Henriksen serum has a refreshing citrus scent that makes putting it on the face a real treat. It comes in a slightly opaque glass bottle with a pump for easy dispensing. Application is a breeze and there are no pesky waiting periods.Why? It's pretty simple. When used alongside each other, these three are your skin's best chance at fighting the visible signs of ageing. Not only that, but this holy trinity also promotes happy, healthy and well-functioning skin. So get you best SPF moisturiser at the ready, clue yourself up which retinol product works best for you and let's take a look at some of the best vitamin C serums. What is the best vitamin C serum to buy?

Ascorbic acid or vitamin C is a powerful, acidic antioxidant that stimulates the skin to regenerate and heal itself. It fades hyperpigmentation and soothes inflammation. It also defends the skin from harmful free radicals and boosts collagen. Vitamin C also helps fade dark spots, evens out skin tone, and increases radiance. As if that wasn’t enough, research suggests that when vitamin C is applied to the skin, it significantly reverses aging-related structural changes by influencing collagen and elastin synthesis. The main ingredient is 15 per cent L-ascorbic acid, which is an anti-ageing workhorse. It brightens, firms and protects the skin. Working together with vitamin C is pumpkin ferment and pomegranate extract, which refine pores and slough off dead skin cells so you get a more even skin tone. ImageURL": "https://www.renskincare.com/cdn/shop/files/renskincareuk-mini-radiance-ready-steady-glow-daily-aha-tonic-30617785073706_grande.png?v=1692654537", Once applied, it doesn’t immediately make the skin look radiant, but over time we did notice an improvement in the overall brightness of our complexions. We also noticed that it helped visibly reduce some of our hyperpigmentation, resulting in a more even, less dull-looking skin tone.A disadvantage of this serum is the form of vitamin C it uses. Derivatives are less powerful than L-ascorbic acid but if the goal is to avoid irritation and slowly build up a tolerance, it’s a great starter product. I also wish they disclosed the exact concentration of vitamin C in the serum but it’s still an effective product, nonetheless.

In most cases, for a product to be of biological significance, it needs to have a concentration higher than 8%. Studies have shown that a concentration above 20% does not increase its biological significance, but might cause irritation. If you struggle with dull skin, incorporating this brightening vitamin C serum into your skincare routine might be just what you need to achieve a more radiant complexion.The REN Skincare Clean Jelly Oil Cleanser is a three-phase, gentle oil-based cleanser that removes waterproof makeup, SPF, and pollution. This cleanser provides a deep clean without stripping your skin of essential moisture. What’s unique about this cleanser is that it shifts three times while you cleanse, starting as a jelly and shifting to an oil and then milk, to gently wash away dirt, makeup, and pollution for soft, clean skin. OLEHENRIKSEN Banana Bright 15% Vitamin C Serum is our fave for brightening because it leaves the skin with a glow right after application and it helps to improve the skin’s radiance over time with consistent use. Clean ingredients: Ren Skincare products are free from potentially harmful ingredients such as parabens, sulfates, and phthalates. A study published in the Journal of Clinical and Aesthetic Dermatology found that these ingredients can cause skin irritation and other adverse effects. Sun protection: During the day, make sure to use a REN Skincare sunscreen with at least SPF 30 to protect your skin from the harmful effects of the sun.

ImageURL": "https://www.renskincare.com/cdn/shop/files/ren-clean-skincare-glow-daily-vitamin-c-gel-cream-30553460113450_grande.png?v=1684742825", Availability: REN Skincare products may not be available in all locations or may have limited availability in some areas.We noticed a real improvement in the texture of our skin when we used SkinCeuticals C E Ferulic, as well as a reduction in the appearance of fine lines. After six weeks of using it, our skin looked and felt softer and smoother. However, we weren’t convinced that contributed to the glowiness of our complexions significantly more than other, more affordable options we’ve used. There’s no denying that we adore this serum, but it’s worth noting that while it doesn’t contain fragrance, it doesn’t have a particularly appealing smell. However, the scent doesn’t linger on the skin, so it’s not a dealbreaker for us. This is a great all-rounder for anyone in need of a radiance boost, though it’s best for those with a bit of patience, as results may take time. ImageURL": "https://www.renskincare.com/cdn/shop/files/ren-clean-skincare-mini-overnight-dark-spot-sleeping-cream-15ml-30617784123434_grande.png?v=1692654359", nadine r. I love the cream which I love the cream which helps with harsh weather of winter. Added with the serum my face doesn’t get the usual dryness and redness that I get with other creams. REN Keep Young And Beautiful™ Firming And Smoothing Serum contains hexapeptide 11 from yeast fermentation to help improve skin firmness.