haruharu wonder Black Rice Hyaluronic Toner Review: A Second, Different Take on Rice
We've already covered fermented rice as a supporting player in a sunscreen. This toner puts black rice front and center alongside hyaluronic acid — a plain hydration play rather than a treatment claim.
Rice already showed up on this site as a supporting ingredient in Beauty of Joseon's Relief Sun, where the sunscreen function did the real work and the fermented rice extract was the secondary story. haruharu wonder flips that arrangement — fermented black rice is the headline here, paired with hyaluronic acid in a toner built entirely around hydration, with no sunscreen or treatment claim attached.
What black rice brings versus regular rice
Black rice (sometimes called "forbidden rice") differs from the white rice extract used in most K-beauty formulas mainly in its anthocyanin content — the same pigment class responsible for its dark color, which also carries antioxidant activity. The dermatological evidence for rice extract broadly is the same we cited for Beauty of Joseon: a general review documenting rice's traditional and modern dermatological uses, and a 2025 animal study showing fermented rice bran extract increased collagen and elastin synthesis in mouse skin. Neither is a human facial-skin RCT, and neither is specific to black rice's anthocyanin content over standard rice extract — treat the "black rice" framing as a genuine but still preclinical-stage differentiator, not a proven upgrade over any other rice-based toner.
Hyaluronic acid is doing the heavier lifting
The better-evidenced half of this formula is hyaluronic acid, which has a considerably stronger human trial record. A 2022 review covering topical HA's effect on skin quality and visible aging signs, and a broader review of HA as a skin-rejuvenating biomaterial, both support genuine surface hydration and a temporarily plumped, smoother appearance. If this toner delivers a visible glow, HA is more likely doing that work than the black rice is — similar to how we handle rice's supporting role in the Beauty of Joseon sunscreen entry.
Texture and the lavender scent
It's a lightweight, splash-style toner rather than an essence-thick one — closer to Klairs Supple Preparation in weight than a viscous serum-toner hybrid. The lavender scent is a genuine point of difference from most of the fragrance-light or unscented toners already on this site; it's mild rather than perfumey, but worth flagging for anyone who prefers fragrance-free skincare specifically.
Who it's genuinely good for
- Anyone wanting a straightforward, well-priced hydration toner without a treatment claim attached — no acids, no retinoids, just moisture
- Dehydrated or "tight-feeling" skin looking for a simple first step that layers cleanly under a serum
- Vegan/cruelty-free-conscious buyers — the brand markets both explicitly, which the "hyaluronic heaven" positioning doesn't compromise on
Who might not need it
- Anyone specifically chasing the anti-aging or brightening claims implied by "fermented black rice" marketing — the antioxidant mechanism is plausible but not proven at the human, facial-skin level
- Fragrance-sensitive or reactive skin, given the lavender scent
- Anyone who already uses a dedicated HA serum like Torriden's DIVE-IN — layering two HA-forward products is redundant unless you specifically want the toner step for application ease
Bottom line: the hyaluronic acid half of this formula is well-evidenced and does the real hydrating work; the black rice half is an interesting, still-emerging ingredient story rather than a proven active — a solid, unpretentious hydration toner either way.
References
Peer-reviewed sources for the claims above, retrieved via literature search. Cite the linked DOI when reusing any of this.
- Dermatological uses of rice products — J Cosmet Dermatol, 2022 — review
- Fermented rice bran extract delays skin aging by increasing the synthesis of collagen and elastin — Front Pharmacol, 2025 — animal study
- Topical hyaluronic acid for skin quality and aging signs — Dermatol Ther, 2022 — review
- Hyaluronic acid as a rejuvenating biomedicine — Int J Biol Macromol, 2018 — review
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