Senté Hydrate+ Serum | Four-Form Hyaluronic Acid with HSA

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Standard Hyaluronic Acid serums work at the skin's surface. A single molecular weight of HA attracts water to the surface layer but does not deliver hydration to the mid and deeper layers of the skin where lasting plumpness and structural hydration are maintained. Senté Hydrate+ addresses this limitation with four different molecular weights of Hyaluronic Acid, each penetrating to a different depth, plus an additional layer of clinical differentiation that no other HA serum provides: Senté's patented HSA.The first and only Hyaluronic Acid serum formulated with HSA. HSA does something important that low molecular weight Hyaluronic Acid cannot do alone: it counteracts the pro-inflammatory response that low molecular weight HA can trigger in some sensitive skin types, making multi-form HA serums genuinely appropriate for reactive skin for the first time. In a clinical study, 100% of subjects agreed their skin felt instantly hydrated, calm, soothed and refreshed after use. 100% agreed the serum absorbs quickly and reduces post-procedure discomfort.Who Is It For? All skin types wanting deep, multi-level hydration from a single serum Dehydrated skin that has not found adequate lasting hydration from standard single-weight HA serums Sensitive and reactive skin that has experienced inflammatory reactions to low molecular weight HA in other serums Post-procedure skin cleared for serums: 100% agreement on reduced post-procedure discomfort in clinical study Those on GLP-1 medications (Ozempic, Wegovy, Mounjaro, Zepbound) with significant dehydration during weight loss Menopausal skin with reduced water-binding capacity and ongoing dehydration Those wanting a hydration serum as the first step in the Senté programme before the Dermal Repair Cream or Ultra Nourish How Does It Work?The four-form Hydra4 HA Complex provides hydration at every layer of the skin simultaneously. High molecular weight Hyaluronate forms a moisture film at the surface. Mid-weight Sodium Hyaluronate Crosspolymer provides surface and upper epidermal hydration. Sodium Hyaluronate penetrates to mid-epidermal layers. Low molecular weight Sodium Acetylated Hyaluronate and Hydrolyzed Sodium Hyaluronate reach deeper epidermal layers for hydration that persists hours after application. HSA binds water deep within the skin through the same mechanism as natural Heparan Sulfate, providing the deepest layer of water retention and simultaneously modulating any inflammatory response that low molecular weight HA would otherwise trigger. Beta-Glucan and Panthenol provide complementary soothing and barrier support. Sodium PCA and Glycerin provide additional humectant hydration for a sustained surface effect.Key Ingredients Heparan Sulfate Analog (HSA, patented, Senté): Provides the deepest layer of water attraction and retention. Critically, also modulates the inflammatory response that low molecular weight Hyaluronic Acid can trigger in sensitive skin, making the multi-form HA complex genuinely safe for reactive skin types. 4-Form Hyaluronic Acid Complex (Hydra4): Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer and Hydrolyzed Sodium Hyaluronate. Four molecular weights providing hydration from the skin's surface to its deeper epidermal layers simultaneously for comprehensive, lasting multi-level hydration. Beta-Glucan: A polysaccharide with barrier repair and soothing activity that complements the HSA anti-inflammatory component. Panthenol (Provitamin B5): Supports skin comfort, barrier health and moisture retention. Sodium PCA and Glycerin: Additional humectants that attract moisture and maintain surface hydration between applications. Clinical Results 100% of subjects agreed skin felt instantly and long-lastingly hydrated 100% agreed skin felt calm, soothed and refreshed after use 100% agreed the serum absorbs quickly and reduces post-procedure discomfort Benefits Multi-level deep hydration across all skin layers from a single serum HSA counteracts inflammatory response to low molecular weight HA for safe use in sensitive skin Instantly plumps and smooths fine lines from dehydration 100% clinical agreement on immediate hydration, calm and comfort Reduces post-procedure discomfort: clinically confirmed Non-comedogenic, hypoallergenic, paraben-free, fragrance-free, gluten-free and cruelty-free Suitable for all skin types including sensitive and post-procedure What Results Can You Expect?Immediately: visible plumping and improved skin texture with first use, consistent with the 100% immediate hydration clinical agreement. At 4 weeks: significantly improved baseline hydration and skin plumpness with consistent daily use. Long-term: maintained multi-level hydration that supports the performance of all other treatment products in the routine.How We Use It at Face for SoulAs a pharmacist prescriber specialising in skin health, Senté Hydrate+ is the serum I recommend as the first layer step before the Dermal Repair Cream for patients with significant dehydration and for all post-procedure patients once serums are cleared. The 100% clinical agreement on post-procedure discomfort reduction is particularly relevant: patients who have had microneedling, peels or laser resurfacing benefit immediately from multi-level HSA hydration at the serum step. For sensitive patients who have had inflammatory reactions to previous HA serums, the HSA co-ingredient makes the multi-form complex safe to introduce.How to UseAfter cleansing, apply 5 to 7 drops to the skin morning and evening. Allow to fully absorb before applying moisturiser or SPF. In the Senté programme: use after the Daily Soothing Cleanser and before the Dermal Repair Cream or Ultra Nourish.Frequently Asked QuestionsWhy is this different from standard HA serums?Two reasons. First, the four molecular weights address all skin layers simultaneously rather than only the surface. Second, and more clinically significant, HSA counteracts the inflammatory response that low molecular weight HA triggers in reactive and sensitive skin, making multi-form HA genuinely appropriate for those skin types for the first time.Can I use it with tretinoin?Yes. Apply Hydrate+ after cleansing, allow to absorb, then apply tretinoin. Or apply tretinoin first, allow to absorb, then Hydrate+ before the moisturiser. Either sequence is compatible. The multi-level hydration supports skin comfort during retinoid adjustment.Is it pregnancy safe?No established pregnancy contraindications. Consult your midwife or obstetrician.Is it suitable for rosacea-prone skin?Yes. HSA's anti-inflammatory activity makes this the most appropriate HA serum for rosacea-prone skin. Low molecular weight HA without HSA can trigger inflammatory responses that worsen rosacea.Can I use it after microneedling?Yes, from the point your clinician confirms serums can be reintroduced. The clinical evidence of 100% agreement on post-procedure discomfort reduction makes it one of the most appropriate post-procedure hydration serums available.Does it clog pores?No. Non-comedogenic and suitable for all skin types.How long will one bottle last?Used morning and evening at 5 to 7 drops, 30ml typically lasts 6 to 8 weeks.Is it cruelty-free?Yes. Senté does not test on animals.Clinical InsightAs a pharmacist prescriber, Hydrate+ is the post-procedure serum I recommend most consistently because the HSA and multi-form HA combination addresses both the dehydration and the inflammation of freshly treated skin simultaneously, in the only serum format that the clinical evidence confirms works for sensitive post-procedure skin. For patients who have had reactions to standard HA serums, the HSA co-ingredient is the specific reason this works where others have not.Research and EvidenceThe role of different molecular weights of Hyaluronic Acid in hydrating different epidermal layers is documented in published cosmetic science research. The pro-inflammatory potential of low molecular weight HA in reactive skin and the mechanism by which Heparan Sulfate modulates this response are documented in published biochemistry and skin immunology literature. Senté's clinical study confirming 100% agreement on hydration, calm, comfort and post-procedure discomfort reduction supports the clinical utility of the formulation.How Does It Compare?Senté Hydrate+ vs standard single-weight HA serums: Standard serums hydrate one layer. Hydrate+ hydrates all layers simultaneously with HSA-mediated deep water retention and HSA modulation of low molecular weight HA inflammatory responses.Senté Hydrate+ vs Revision Skincare Hyaluronic Acid Serum: Revision provides dual-weight HA. Hydrate+ provides four-weight HA plus HSA. The additional molecular weights and HSA anti-inflammatory modulation make Hydrate+ more comprehensive for sensitive and post-procedure skin.Complete Your RoutineMorning and evening: Senté Daily Soothing Cleanser, Senté Hydrate+ Serum (5 to 7 drops, absorb), Senté Dermal Repair Cream or Ultra Nourish, Senté Even Tone Mineral SPF 30 in the morning.Why Buy From Face for Soul?At Face for Soul, Hydrate+ is the post-procedure serum and sensitive HA serum in our Senté programme recommendations. Contact us if you have questions about how it fits into your current programme or whether the Senté range is appropriate for your skin concerns. Show more