Blender 3D: Noob to Pro/Every Material Known to Man/Human Skin

Method 1

Material
Col: R=0.94 G=0.82 B=0.73
Spe: R=0.94 G=0.82 B=0.73
Mir: R=0.94 G=0.82 B=0.73

Shaders
[Oren-Nayar] Reflection: 0.95 Roughness:0.3
[CookTorr] Specularity: 0.05 Hardness: 10
Translucency 0.00
Ambient: 0.500
Emit: 0.000

SSS-based method with Nodes

This method will use material nodes and SSS (SubSurfaceScattering) to create a more realistic slightly tanned caucasian skin.

Nodes

Just enable it as a Nodes material and create two material nodes, referring the first as Node1 and the second as Node2. Skip this section if you are not a "noob".
First off, under the "Materials" section select {Add new} and under "Links and Pipeline" tab select "Nodes".Now go to the "Window Type", click, it and from the drop-down menu select "Node Editor". You should have a Node marked as Out and another as Material.Right-click on an empty space and select Add>Input>Material. Link the top-right {Color} (yellow circle), from the node you've created and link it to the bottom-left {Color} of the other Material node. Click on {Add new} in each Material node.

Node1

Select Node1

On "Materials Button"

Shaders tab
Enable {Cubic}
Oren-Nayar: Ref-0.8; Rough:0.3
CookTorr: Spec-0.15; Hard:50

SSS tab
Enable {Subsurface Scattering}
Scale: 0.13
Radius R:4.821
Radius G:1.694
Radius B:1.090
IOR (Index of Refraction):1.3
(Note: you can change the IOR to give a lighter,+, or darker,-, skin)
Front:1.15
Back:1
Go to the color picker (not Col slider), Hex:E9B08F

Node2

Select Node2

On the "Materials button"

Shaders tab
Enable {cubic}
Minnaert: Ref-0.71; Dark-0.77
Cooktorrent: Spec-0.19; Hard-8

On the "Textures Button"

Add new>Stucci
Enable {Plastic}, and {Soft noise}
NoiseSize: 0.001
Turbulence: 3.4
Noise Basis>Original Perlin

Again on the "Materials Button"

Map Input tab
Enable {Orco} and {Sphere}

Map to tab
Only enable Nor, and leave the rest unselected
Nor slider: 0.4

(Author Note: Change everything as needed if you feel it gives a better look or a more realistic one, also, this article may require some reformatting, since i'm a newbie in wikibooks.)

Method: General Caucasian

Color

Col
- R- 0.902
- G- 0.773
- B- 0.694
Spec
- R- 0.834
- G- 0.760
- B- 0.679

Shaders

Diffuse Type- Oren-Nayar
- Ref- 0.85
- Rough- 0.3
Specular Type- CookTorr
- Spec- 0.17
- Hard- 30

Method: Pale-Style

Color

Col
- R- 0.889
- G- 0.788
- B- 0.788
Spec
- R- 0.723
- G- 0.692
- B- 0.657

Shaders

Diffuse Type- Oren-Nayar
- Ref- 0.85
- Rough- 0.3
Specular Type- CookTorr
- Spec- 0.17
- Hard- 30

Method: Black-Style

Col:
 R:350
 G:244
 B:194

Spe:
 R:834
 G:760
 B:679

Shaders

Oren-Nayer

Ref:0.85
Rough:0.3

Cooktorr

Spec:0.17
Hard:30

Method: Brown-Style

Col:
 R:0.584
 G:0.494
 B:0.246

Spe:
 R:0.834
 G:0.76
 B:0.679

Shaders

Oren-Nayer:
Ref:0.85
Rough:0.3

Spec:0.18
Hard:30

Method: South-Asian

Col: R=0.75 G=0.52 B=0.4
Spe: R=0.75 G=0.52 B=0.4
Mir: R=0.75 G=0.52 B=0.4

(note: the intensity of light and the type of lamp{and other light settings} will affect the material preview ,press f5 ,under the lamp buttons make sure that:-

energy="1"
r,g,b all are set to "1"
under preview pane lamp is selected

)

Shaders

[Oren-Nayar] Reflection: 0.95 Roughness:0.3
[CookTorr] Specularity: 0.05 Hardness: 10
Translucency 0.00
Ambient: 0.500
Emit: 0.000

Preview

(Note:in this image the actual color of the material is not so clearly visible as it is highly compressed,click on the image to see the image in original size and actual shades{color})