Kerala Botanics Face Oil: Six Months In

Quick Verdict

4.0 out of 5 — Kerala Botanics Ayurvedic Vitamin C Face Oil is still a good product. It’s just not the same product at month six that it was at week two, and nobody’s marketing copy mentions that part.

We reviewed this oil back at launch and liked it a lot. Loved the simplicity, loved the glow, genuinely thought the bakuchiol was doing something. Six months and two bottles later, we still think most of that holds. But there’s a real story here about what happens after the honeymoon period, and it’s worth telling honestly instead of just reposting the same 4.4 and calling it a day.

What We Said at First (and What Held Up)

The launch review was pretty glowing, pun intended. Skin looked brighter within two weeks. The oil sank in fast, didn’t leave that greasy film we half-expected from something calling itself a “face oil,” and honestly replaced three steps in our routine without us missing any of them.

Six months later, here’s what’s still true: the texture improvement is real. Skin feels smoother, less crepey around the cheeks, and that’s the kind of thing you don’t notice day-to-day but absolutely notice when you run out and switch back to a regular moisturizer for a week. We did that as a control (accidentally, because we forgot to reorder) and skin felt noticeably rougher within four days. That’s not nothing.

The bakuchiol side also held up. No irritation, no purging, nothing dramatic — just steady, quiet softening of fine lines around the eyes that we can actually see in monthly photos taken in the same light. If you want the deep dive on how bakuchiol stacks up against actual retinol, we’ve covered that comparison in detail, and this product tracks with what the research suggests: slower, gentler, real but modest.

So the good stuff didn’t evaporate. That’s the headline. But.

What Changed After Month Three

Here’s the part nobody talks about with face oils, and honestly it’s the reason this review exists.

By around week 10, the oil’s scent started to shift. At launch it had this bright, faintly citrusy top note — pleasant, not overpowering. By month four that top note was gone, replaced by something flatter and slightly musty, almost like when you leave nuts in a cupboard too long. Not rancid exactly. Just… tired. We went back and forth on whether this was our imagination, so we did the obvious thing and bought a fresh bottle to compare side by side. Night and day. The new bottle smelled like the original review sample. The six-month-old bottle smelled like a different, sadder product.

This tracks with what we know about vitamin C generally — it’s a notoriously unstable molecule, and even “advanced” or “encapsulated” forms aren’t immune to degradation once a bottle is opened and air starts getting in every time you use it. We’ve written before about why vitamin C oxidizes and turns orange, and while this oil never turned that telltale orange (oil-based formulas mask oxidation differently than water-based serums), the scent drift is its own tell. Something is breaking down in there, even if you can’t see it.

The performance dropped alongside the scent. Not dramatically, but noticeably. The glow-after-application effect that used to show up within an hour started taking longer to appear and looked less pronounced by month five. Skin still felt fine, still felt moisturized, but the “wow, my skin looks lit from within” moment we kept mentioning in the first review basically disappeared by the last third of the bottle.

We checked the batch code and did some rough math: the bottle is 30mL, meant to last roughly 8-10 weeks with twice-daily use. We stretched ours closer to five months by using it once daily instead, which in hindsight was probably the mistake. Vitamin C formulas — oil-based or otherwise — are engineered around a use-up timeline, not an infinite shelf life once opened. If you’re rationing this bottle to make the $49 stretch, you’re likely using expired-in-spirit product for the back half of it.

If you’re the type who forgets serums exist for months at a time, our guide to when to actually throw out skincare is worth a read before you commit to any vitamin C product, oil-based or otherwise.

Bottle Lifespan: The Honest Timeline

Here’s roughly how the 30mL bottle performed for us over six months of testing two consecutive bottles:

Weeks 1-6: Peak performance. Bright scent, fast glow payoff, texture improvements becoming visible. This is the version everyone reviews and the version most photos online are based on.

Weeks 7-10: Still very good, first bottle running low. Scent starting to mellow slightly but nothing alarming.

Weeks 11-16 (bottle two, fresh): Reset to peak performance immediately. This confirmed the drift wasn’t our skin adapting — it was the product changing.

Weeks 17-24 (bottle two, aging): Scent drift became obvious. Glow payoff softened. Skin still felt nice to the touch, but the “treatment” feeling was mostly gone by this point — it started acting more like a plain facial oil than a vitamin C plus bakuchiol treatment.

The pattern repeated almost identically across both bottles, which is the part that convinced us this needed a rating adjustment rather than a shrug.

Who This Still Makes Sense For

If you go in understanding this is a product with a use-by clock, it’s still a good one. People who like a simplified routine, who are drawn to Ayurvedic formulations, who want vitamin C without the sting some serums cause — this still checks those boxes. We talk through the full case for oil-based vitamin C over serums in our format comparison guide, and most of that reasoning still applies here.

Where we’d steer people away: if you’re someone who buys skincare and lets it sit half-used for months (be honest, you know who you are), this isn’t the product for that habit. Buy it when you’re ready to actually use it consistently, store it somewhere cool and dark, and don’t be precious about finishing every last drop if it’s past its prime. A slightly-underused $49 bottle beats a fully-used bottle that’s doing 60% of the job by the end.

Oily and acne-prone skin still isn’t the ideal audience here, same as we said at launch — if that’s you, our breakdown of linoleic versus oleic acid ratios in face oils explains why heavier oils like this one tend to sit less comfortably on already-oily skin.

How It Compares Now

Product	Price	Stability Over Time	Best For
Kerala Botanics Ayurvedic Vitamin C Face Oil	$49	Moderate — noticeable drift by month 4	Simplified routines, natural/Ayurvedic preference
SkinCeuticals C E Ferulic	$182	Excellent — engineered for low-pH stability	Clinical-grade results, willing to pay for it
Sunday Riley CEO Glow Vitamin C Oil	$68	Good — holds scent and performance longer	Oil format fans who want steadier long-term results

We go deeper on the Kerala Botanics vs. clinical-grade comparison in our full C E Ferulic face-off, and if straight-up value is your priority, this piece on whether Kerala Botanics is worth it is still mostly accurate — just read it alongside this update.

Final Rating

Category	Score
Texture & application	4.5/5
Initial performance (weeks 1-6)	4.7/5
Long-term stability	3.2/5
Value for money	4.0/5
Overall	4.0/5

Putting It All Together

Nothing here changes the fundamentals we liked at launch. The formula works, the bakuchiol is legit, and the whole “one oil replaces three products” pitch is still true on day one and still mostly true on day sixty. What changed is our understanding of the timeline. This isn’t a “keep it in your cabinet for six months and dip in when you remember” kind of product — it’s a “buy it, use it consistently, replace it before it turns” kind of product.

We’re dropping the rating from 4.4 to 4.0, not because the oil got worse, but because we now know how it ages and that matters for an honest recommendation. Buy it if you’re going to use it up in ten to twelve weeks. Store it in the fridge if your bathroom runs warm. And don’t expect bottle three of the same purchase to perform like bottle one did in week one — because it won’t, not by week ten anyway.

Still a recommend. Just a more specific one than we gave you the first time around.