Hydration Serum
Five-Ingredient Hydrating Serum for Sensitive Skin
30 ml / 1 fl oz. Fragrance-free.
Tight, reactive skin gets the water it is missing, and nothing it can flare at. Five ingredients, calm skin.
Free with your plan
- No fragrance or vitamin E
- Vegan and cruelty-free
- Made in North America
- Five ingredients in all: water, cassia seed extract, glycerin, pentylene glycol and xanthan gum. Nothing hiding in a long list.
- Floods tight, dehydrated skin with moisture and helps the barrier hold on to it, so it stops feeling raw.
- No fragrance, no essential oils and no vitamin E, and suitable for sensitive skin.
The problem it solves
Why this step exists, and what it changes.
Every serum that stings is one more thing your skin has to recover from. If you react to fragrance, essential oils or vitamin E, or live with rosacea, most treatment serums are off the table, and your skin is left tight and uncomfortable with nothing in between the wash and the cream. Hydration Serum is the step that fills that gap without starting a flare.
How it works on the skin
Cassia seed extract and glycerin draw water into the upper layers of the skin and help the barrier hold it, so tightness eases and the surface looks smoother and calmer. The formula is light, absorbs fast and layers under a moisturizer or SPF. There are five ingredients and none of them is fragrance, an essential oil or vitamin E.
What is in it
- Cassia Seed ExtractA plant polysaccharide that forms a light, moisture-holding film on the skin and eases tightness.
- GlycerinDraws water into the skin and keeps it there, for soft, comfortable skin all day.
- Vegan
- Fragrance-free
Fragrance-free. No parfum, no aroma and no essential oil in the list below.
How to use it
- 01Warm 2 to 3 drops in your palm.
- 02Press over face and neck and massage in gently.
- 03Morning and evening, then Soothing Emulsion. Follow with SPF during the day.
- How often
- Morning & Evening
- Where in the routine
- After cleansing, before moisturizer. Morning and evening.
Who it is for. And who it is not.
Buy it if
- Every serum you have tried stung, burned or set your skin off.
- You have rosacea, or skin that reacts to fragrance, essential oils or vitamin E.
- Your skin feels tight and raw and you want the shortest ingredient list there is.
Skip it if
- Dark spots or uneven tone are your main complaint. This hydrates and calms; it does not fade marks. Tone Support Serum is the fragrance-free serum for tone.
- Fine lines are the complaint and your skin rarely reacts to anything. Renewal Serum is the one for lines.
Works with
The rest of the routine this one belongs to.
K1Kale CleanserThe gentle wash that goes before it.$26.60 $38.00
M1Soothing EmulsionThe calming moisturizer that seals it in.$26.60 $38.00
Calibrate the rest of your ritual.
Skincare works best as a calibrated system rather than isolated bottles. Take our 2-minute quiz to build your complete custom routine. Your first box is $49 for three products, $59 for four. After it, 20% off every refill and free US shipping. Pause or cancel anytime.
Formulation standards
Made in North America for skin that reacts.
Nothing to React To
No fragrance, no essential oils, no declared fragrance allergens, no vitamin E and no drying alcohol, in any of the three.
Vegan and Cruelty-Free
No animal-derived ingredients and no animal testing.
Paraben-Free
Preserved without parabens, and made to order for your box.