Torriden DIVE-IN vs. Round Lab Birch Serum
Nearly identical price, both fragrance-free, but a single-purpose five-weight hyaluronic acid serum against a broader formula covering hydration, brightening, and soothing together.
Criteria | Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum | Round Lab Birch Juice Moisturizing Serum |
|---|---|---|
| Price | $24.00 | $20.00 |
| Price / unit | $0.48/mL | $0.40/mL |
| Size | 50 mL | 50 mL |
| Price checked | 10/17/2026 | 9/12/2026 |
Both are lightweight, fragrance-free hydrators at essentially the same price, the real difference is how many jobs each formula is actually doing.
Why compare these two specifically
Near-identical price removes cost as a factor entirely, leaving a genuine single-purpose-versus-multi-purpose question: pure hyaluronic acid hydration, or a formula that also brightens and soothes.
Price per milliliter
Torriden runs $0.48 per milliliter (Amazon, checked 17 October 2026). Round Lab runs $0.40 per milliliter ($20.00 for 50mL). Functionally identical.
Pure hydration vs. hydration plus brightening plus soothing
Torriden builds around five molecular weights of hyaluronic acid and nothing else, a focused, single-purpose hydration formula. Round Lab combines birch sap and hyaluronic acid for hydration with real ascorbic acid for brightening and beta-glucan plus licorice root for soothing, three functional categories in one formula.
Our take
If hydration is genuinely the only thing you need this step to do, Torriden's focused hyaluronic acid formula does that simply and well. If you'd rather have brightening and soothing bundled in for essentially the same price, Round Lab's broader formula covers more ground without costing more.
Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum: $0.48/mL (Amazon, checked 17 October 2026). Five molecular weights of hyaluronic acid, pure hydration with no other functional claim.
Round Lab Birch Juice Moisturizing Serum: $0.40/mL. Hydration, real vitamin C brightening, and soothing botanicals together, essentially the same price as Torriden.
See our full best Korean serums by concern guide, or browse the rest of our serum coverage.
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Price checked 10/17/2026
Price checked 9/12/2026
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Frequently asked
Which does more, Torriden DIVE-IN or Round Lab Birch Serum?
Round Lab, its formula addresses hydration, brightening (via real ascorbic acid), and soothing together. Torriden focuses on hydration alone through five molecular weights of hyaluronic acid.
Are Torriden DIVE-IN and Round Lab Birch Serum the same price?
Nearly: Torriden runs $0.48 per milliliter (Amazon, checked 17 October 2026), Round Lab runs $0.40 per milliliter.
Are Torriden DIVE-IN and Round Lab Birch Serum fragrance-free?
Yes, both are confirmed fragrance-free.