Skin Functional vs Standard Beauty: Niacinamide Stacks, Compared
A multi-active niacinamide complex against a straightforward 10% serum — which pharmacy-aisle option actually earns its shelf space?
Skin Functional
10% Niacinamide + NAG + Succinic + Zinc
R175
Standard Beauty
10% Niacinamide Serum
R165
Same headline number, very different ingredient decks
Both of these serums lead with 10% niacinamide, and both sit within a R10 gap of each other at the till. On paper that makes this an easy pick-either call. It isn't, because Skin Functional's version isn't just niacinamide — it stacks acetyl glucosamine (NAG), succinic acid and zinc PCA around the headline active, while Standard Beauty's serum keeps things deliberately single-minded.
What the extra actives in Skin Functional's stack actually do
Acetyl glucosamine has published research suggesting it works synergistically with niacinamide on tone and texture — it's the same combination Olay built an entire pigmentation-focused product line around. Succinic acid brings mild antimicrobial, sebum-regulating properties that pair naturally with an oil-control formula, and zinc PCA adds a second layer of sebum management on top of what niacinamide itself does. Combined, this reads as a genuinely acne- and pore-focused formula, not just a brightening serum that happens to include niacinamide.
The case for Standard Beauty's simpler formula
There's real value in a single-active approach: fewer ingredients means fewer variables if your skin reacts, and it's easier to know exactly what's doing the work. Standard Beauty's straightforward 10% niacinamide serum is a clean, well-evidenced formula without the added complexity — a sensible pick if you're layering niacinamide alongside several other actives already and don't want more ingredients competing for attention in your routine.
Which one actually suits acne-prone or oily skin better
If breakouts, visible pores and persistent oiliness are your main complaint, Skin Functional's stack is the more purpose-built formula — the NAG-succinic-zinc combination is doing real, complementary work alongside the niacinamide rather than sitting there as filler. Standard Beauty's serum still helps with oil control and tone through niacinamide alone, but it's a broader-purpose formula rather than a targeted acne-and-pore serum.
Price and value
At R175 versus R165, the price gap is small enough that it shouldn't be the deciding factor either way. Both are stocked at Dis-Chem and both undercut international niacinamide serums on price while matching or exceeding them on concentration and formulation transparency.
Our take
Reach for Skin Functional if oiliness, visible pores or occasional breakouts are the actual problem you're solving — the added actives are doing real work, not padding the ingredient list. Reach for Standard Beauty if you want a clean, single-active niacinamide serum to slot into an already-full routine without adding more variables. Either is a legitimately good R150–R200 niacinamide serum, and neither requires you to import anything to get it.
Which one actually makes sense for you
Better for acne-prone or oily, pore-visible skin
Skin Functional — the NAG, succinic acid and zinc stack adds genuinely complementary oil-control actives.
Better for a simple, single-active routine
Standard Beauty — a clean 10% niacinamide serum without added variables.
Better value for the ingredient list
Skin Functional, at only R10 more for three additional evidence-backed actives.
Better for sensitive skin wary of multi-active formulas
Standard Beauty — fewer ingredients to react to if your skin is easily irritated.
Key takeaways
- Both serums lead with 10% niacinamide, but Skin Functional adds NAG, succinic acid and zinc PCA for a more targeted acne-and-pore formula.
- Standard Beauty keeps its formula to niacinamide alone, which suits layering into an already busy routine or sensitive skin.
- The price gap between the two (R175 vs R165) is small enough that formula fit should decide, not cost.
- Both are well-evidenced, pharmacy-accessible alternatives to pricier imported niacinamide serums.
From the Knowledge Hub
Frequently asked questions
Is a multi-active niacinamide serum better than a single-active one?
Not automatically — it depends on your skin concern. Skin Functional's added NAG, succinic acid and zinc genuinely complement niacinamide for oil control and acne, but Standard Beauty's simpler formula is a sound choice if you want fewer variables or are already using several other actives.
Can I use either of these with a vitamin C serum or retinoid?
Yes. Niacinamide is broadly compatible with vitamin C and retinoids and is commonly layered alongside both — apply from thinnest to thickest texture and introduce new actives one at a time to monitor for irritation.
Which is better for oily, acne-prone skin specifically?
Skin Functional's stack is the more purpose-built option for oiliness, visible pores and occasional breakouts, since succinic acid and zinc PCA add extra sebum-regulating action alongside the niacinamide.
Are these serums suitable for daily use?
Yes, both are formulated for twice-daily use under sunscreen in the morning and a moisturiser at night. As with any new active, patch-test first and introduce gradually if you have sensitive or reactive skin.
Editorial disclaimer: SKINLABS's views and opinions are independent. This article is not paid or sponsored content. Product information is assessed using publicly available information, ingredient analysis, editorial research and, where applicable, product testing. Prices, availability and formulations may change.
Reader discussion
Nomvula_Soweto
Been using the Skin Functional one for my breakouts and the succinic acid addition genuinely seems to help more than plain niacinamide did.
2026/08/30
Werner_Paarl
Only a R10 gap between them so this came down entirely to reading the ingredient breakdown, appreciated the detail.
2026/08/30
Ayanda_Pmb
Standard Beauty's simplicity is exactly why I like it — already juggling four other actives and didn't want more variables.
2026/08/30