Senté Defense C Serum 30ml

Size: 30ml (1 fl. oz.) Texture: Lightweight, fast-absorbing serum with silky application Skin Type Suitability: All skin types, exceptionally gentle for sensitive skin Clinical Testing: Clinical study demonstrated 94% of subjects showed visible improvement in overall skin appearance, and 87% showed improved tone evenness and radiance in 8 weeks Packaging: Pump dispenser for hygienic, controlled application

Application: After cleansing, dispense 1–2 pumps of serum onto fingertips and gently massage into the face, neck, and décolletage using upward, outward motions. Allow the serum to fully absorb before proceeding to the next step in your routine. Frequency: Use morning and night for optimal results Timing: Both AM and PM application recommended. Morning use provides daytime antioxidant protection; evening use supports overnight repair and renewal. Layering: Apply after cleansing and before moisturiser. In the morning, always follow with a broad-spectrum SPF 30 or higher. The lightweight formula layers beautifully under all moisturisers and sunscreens without pilling or interference. Expert Tips: For enhanced results, pair with other Senté products containing HSA technology to maximise the synergistic benefits of this patented ingredient. Speak to our skincare specialists for personalised application guidance and product layering recommendations tailored to your specific skin concerns and treatment goals.

Water/Aqua/Eau, Tetrahexyldecyl Ascorbate, Ethylhexyl Olivate, Dimethicone/Vinyl Dimethicone Crosspolymer, Glycerin, Acetyl Glucosamine, Polyacrylate-13, Dimethicone, Heparan Sulphate, Terminalia Chebula Fruit Extract, Polyisobutene, Oryza Sativa (Rice) Bran Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Helianthus Annuus (Sunflower) Extract, Tocopheryl Acetate, Polyacrylate Crosspolymer-6, Polysorbate 20, Disodium EDTA

Please note: Formulations are updated periodically by manufacturers without notice. Therefore, the ingredient lists on this website may differ from the product packaging depending on the time and country of purchase. Please refer to your product packaging for accurate ingredient lists. A patch test before use must be carried out for suitability.

Q: How quickly will I see results from the Defence C Serum? A: Clinical studies demonstrate that users begin to see visible improvements in skin brightness and radiance within the first few weeks of consistent use. However, the most significant results—including improved tone evenness, texture refinement, and reduction in the appearance of hyperpigmentation—typically become apparent at the 8-week mark, with 87% of study participants showing measurable improvements in tone and radiance by this time. For optimal results, we recommend consistent twice-daily application as part of your regular skincare routine. Long-term benefits, including enhanced collagen production and cumulative antioxidant protection, continue to develop with ongoing use beyond the initial 8-week period.

Q: Why is THD Ascorbate better than traditional vitamin C (L-ascorbic acid)? A: Tetrahexyldecyl Ascorbate (THD Ascorbate) offers several significant advantages over traditional L-ascorbic acid. Firstly, it is lipid-soluble rather than water-soluble, allowing it to penetrate the skin barrier more effectively and reach deeper layers of the epidermis where it can deliver maximum benefits. Secondly, THD Ascorbate is exceptionally stable and does not oxidise easily, meaning it remains potent and effective throughout the product's shelf life without turning brown or losing efficacy. Most importantly for sensitive skin users, THD Ascorbate delivers all the brightening, collagen-boosting, and antioxidant benefits of vitamin C without the irritation, stinging, or redness commonly associated with L-ascorbic acid formulations. This makes it suitable even for those who have previously been unable to tolerate vitamin C products, allowing more people to access the proven benefits of vitamin C therapy.

Q: Can I use Defence C Serum if I have sensitive or reactive skin? A: Absolutely. The Defence C Serum has been specifically formulated to be exceptionally gentle, even for sensitive and reactive skin types. The inclusion of Senté's patented HSA technology is key to this tolerability—it works to calm inflammation, strengthen the skin barrier, and enhance the skin's natural repair processes whilst improving the tolerance of active ingredients like vitamin C. The formula is dermatologist-recommended and has been clinically tested on sensitive skin with excellent results. Many users who have been unable to tolerate traditional vitamin C serums find that the Defence C Serum delivers the brightening and protective benefits they seek without irritation, redness, or discomfort. However, as with any new skincare product, we recommend performing a patch test before full application and introducing the product gradually if you have particularly reactive skin or a history of adverse reactions to skincare products.

Q: Should I use Defence C Serum in the morning, evening, or both? A: For optimal results, we recommend using the Defence C Serum both morning and evening. Morning application provides crucial antioxidant protection throughout the day, defending your skin against environmental aggressors including UV radiation, pollution, and free radicals. The serum creates a protective shield that helps prevent oxidative damage before it occurs, making it an essential component of daytime skincare. Evening application supports your skin's natural overnight repair processes, allowing the vitamin C and HSA technology to work synergistically to stimulate collagen production, brighten skin tone, and repair daily damage whilst you sleep. When used morning and evening, the serum delivers comprehensive 24-hour protection and treatment, maximising both preventative and reparative benefits. Always follow morning application with a broad-spectrum SPF 30 or higher for complete protection against UV damage.

Q: Can I use Defence C Serum with retinol or other active ingredients? A: Yes, the Defence C Serum can be successfully incorporated into routines that include other active ingredients, including retinol, AHAs, BHAs, and peptides. The gentle, stabilised formulation and the presence of HSA technology make it compatible with most professional-grade skincare actives. For optimal results, we recommend applying the Defence C Serum in the morning and reserving retinol for evening use, as this provides antioxidant protection during the day and cellular renewal at night. If you prefer to use both in the same routine, apply the Defence C Serum first, allow it to fully absorb, then follow with your retinol product. The HSA technology actually helps improve tolerance of other actives by supporting barrier function and reducing inflammation. However, if you're new to combining active ingredients or have sensitive skin, speak to our skincare specialists for personalised guidance on building an effective, well-tolerated routine tailored to your specific skin concerns and tolerance levels.

Q: Is Defence C Serum safe to use during pregnancy or whilst breastfeeding? A: Vitamin C (in the form of THD Ascorbate) and the other ingredients in Defence C Serum are generally considered safe for topical use during pregnancy and breastfeeding, as they are not known to be systemically absorbed in significant amounts that would affect foetal development or breast milk. However, as with any skincare product during pregnancy or nursing, we recommend consulting with your healthcare provider, obstetrician, or dermatologist before introducing new products into your routine. They can provide personalised guidance based on your individual health circumstances and pregnancy considerations. Many pregnant and nursing women successfully use vitamin C serums as part of their skincare routine to address concerns like melasma (pregnancy mask) and maintain skin health during this time. If you receive clearance from your healthcare provider, the gentle, non-irritating formulation makes it an excellent choice for maintaining radiant, protected skin throughout pregnancy and beyond.